71464867787 has 2 divisors, whose sum is σ = 71464867788. Its totient is φ = 71464867786.

The previous prime is 71464867783. The next prime is 71464867807. The reversal of 71464867787 is 78776846417.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71464867787 - 2² = 71464867783 is a prime.

It is not a weakly prime, because it can be changed into another prime (71464867783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35732433893 + 35732433894.

It is an arithmetic number, because the mean of its divisors is an integer number (35732433894).

Almost surely, 2^71464867787 is an apocalyptic number.

71464867787 is a deficient number, since it is larger than the sum of its proper divisors (1).

71464867787 is an equidigital number, since it uses as much as digits as its factorization.

71464867787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88510464, while the sum is 65.

The spelling of 71464867787 in words is "seventy-one billion, four hundred sixty-four million, eight hundred sixty-seven thousand, seven hundred eighty-seven".