20257770753007 has 8 divisors (see below), whose sum is σ = 20478045025152. Its totient is φ = 20038490947800.

The previous prime is 20257770752981. The next prime is 20257770753023. The reversal of 20257770753007 is 70035707775202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20257770753007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20257770753307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248575773 + ... + 248657254.

It is an arithmetic number, because the mean of its divisors is an integer number (2559755628144).

Almost surely, 2^{20257770753007} is an apocalyptic number.

20257770753007 is a deficient number, since it is larger than the sum of its proper divisors (220274272145).

20257770753007 is a wasteful number, since it uses less digits than its factorization.

20257770753007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497233469.

The product of its (nonzero) digits is 5042100, while the sum is 52.

The spelling of 20257770753007 in words is "twenty trillion, two hundred fifty-seven billion, seven hundred seventy million, seven hundred fifty-three thousand, seven".