57426658477 has 8 divisors (see below), whose sum is σ = 58019880312. Its totient is φ = 56833920000.

The previous prime is 57426658469. The next prime is 57426658507. The reversal of 57426658477 is 77485662475.

It can be written as a sum of positive squares in 4 ways, for example, as 9389416201 + 48037242276 = 96899^2 + 219174^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 57426658477 - 2³ = 57426658469 is a prime.

It is a super-2 number, since 2×57426658477² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57426658447) 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, 120477 + ... + 359677.

It is an arithmetic number, because the mean of its divisors is an integer number (7252485039).

Almost surely, 2^57426658477 is an apocalyptic number.

It is an amenable number.

57426658477 is a deficient number, since it is larger than the sum of its proper divisors (593221835).

57426658477 is a wasteful number, since it uses less digits than its factorization.

57426658477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241679.

The product of its digits is 79027200, while the sum is 61.

The spelling of 57426658477 in words is "fifty-seven billion, four hundred twenty-six million, six hundred fifty-eight thousand, four hundred seventy-seven".