245042342404551 has 24 divisors (see below), whose sum is σ = 354554505162000. Its totient is φ = 163082630973312.

The previous prime is 245042342404543. The next prime is 245042342404667. The reversal of 245042342404551 is 155404243240542.

245042342404551 is a `hidden beast` number, since 2 + 4 + 5 + 0 + 4 + 234 + 2 + 404 + 5 + 5 + 1 = 666.

It is not a de Polignac number, because 245042342404551 - 2³ = 245042342404543 is a prime.

It is a super-2 number, since 2×245042342404551² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 245042342404497 and 245042342404506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245042342404451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58642905 + ... + 62682333.

It is an arithmetic number, because the mean of its divisors is an integer number (14773104381750).

Almost surely, 2^{245042342404551} is an apocalyptic number.

245042342404551 is a deficient number, since it is larger than the sum of its proper divisors (109512162757449).

245042342404551 is a wasteful number, since it uses less digits than its factorization.

245042342404551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4050943 (or 4050940 counting only the distinct ones).

The product of its (nonzero) digits is 3072000, while the sum is 45.

The spelling of 245042342404551 in words is "two hundred forty-five trillion, forty-two billion, three hundred forty-two million, four hundred four thousand, five hundred fifty-one".