438473130073457 has 2 divisors, whose sum is σ = 438473130073458. Its totient is φ = 438473130073456.

The previous prime is 438473130073423. The next prime is 438473130073501. The reversal of 438473130073457 is 754370031374834.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 368741344564321 + 69731785509136 = 19202639^2 + 8350556^2 .

It is a cyclic number.

It is not a de Polignac number, because 438473130073457 - 2⁴⁴ = 420880944029041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 438473130073396 and 438473130073405.

It is not a weakly prime, because it can be changed into another prime (438473130073357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219236565036728 + 219236565036729.

It is an arithmetic number, because the mean of its divisors is an integer number (219236565036729).

Almost surely, 2^{438473130073457} is an apocalyptic number.

It is an amenable number.

438473130073457 is a deficient number, since it is larger than the sum of its proper divisors (1).

438473130073457 is an equidigital number, since it uses as much as digits as its factorization.

438473130073457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71124480, while the sum is 59.

The spelling of 438473130073457 in words is "four hundred thirty-eight trillion, four hundred seventy-three billion, one hundred thirty million, seventy-three thousand, four hundred fifty-seven".