51106765402 has 96 divisors (see below), whose sum is σ = 101674137600. Its totient is φ = 18806942880.

The previous prime is 51106765397. The next prime is 51106765403. The reversal of 51106765402 is 20456760115.

It is a happy number.

It is a super-2 number, since 2×51106765402² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51106765403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11552563 + ... + 11556985.

It is an arithmetic number, because the mean of its divisors is an integer number (1059105600).

Almost surely, 2^51106765402 is an apocalyptic number.

51106765402 is a deficient number, since it is larger than the sum of its proper divisors (50567372198).

51106765402 is a wasteful number, since it uses less digits than its factorization.

51106765402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4832 (or 4821 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 51106765402 in words is "fifty-one billion, one hundred six million, seven hundred sixty-five thousand, four hundred two".