51723426625042 has 8 divisors (see below), whose sum is σ = 78647950073916. Its totient is φ = 25507443267072.

The previous prime is 51723426625027. The next prime is 51723426625043. The reversal of 51723426625042 is 24052662432715.

It can be written as a sum of positive squares in 2 ways, for example, as 48623858632561 + 3099567992481 = 6973081^2 + 1760559^2 .

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

It is a super-2 number, since 2×51723426625042² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51723426625043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177135022543 + ... + 177135022834.

Almost surely, 2^{51723426625042} is an apocalyptic number.

51723426625042 is a deficient number, since it is larger than the sum of its proper divisors (26924523448874).

51723426625042 is a wasteful number, since it uses less digits than its factorization.

51723426625042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354270045452.

The product of its (nonzero) digits is 4838400, while the sum is 49.

The spelling of 51723426625042 in words is "fifty-one trillion, seven hundred twenty-three billion, four hundred twenty-six million, six hundred twenty-five thousand, forty-two".