51010605996 has 48 divisors (see below), whose sum is σ = 137232098304. Its totient is φ = 14445478656.

The previous prime is 51010605991. The next prime is 51010606001. The reversal of 51010605996 is 69950601015.

It is an interprime number because it is at equal distance from previous prime (51010605991) and next prime (51010606001).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (51010605991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2677540 + ... + 2696523.

It is an arithmetic number, because the mean of its divisors is an integer number (2859002048).

Almost surely, 2^51010605996 is an apocalyptic number.

It is an amenable number.

51010605996 is an abundant number, since it is smaller than the sum of its proper divisors (86221492308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51010605996 is a wasteful number, since it uses less digits than its factorization.

51010605996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5374190 (or 5374188 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 42.

The spelling of 51010605996 in words is "fifty-one billion, ten million, six hundred five thousand, nine hundred ninety-six".