51235772766 has 16 divisors (see below), whose sum is σ = 102478368000. Its totient is φ = 17077453848.

The previous prime is 51235772759. The next prime is 51235772767. The reversal of 51235772766 is 66727753215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51235772767) 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, 183916 + ... + 369183.

It is an arithmetic number, because the mean of its divisors is an integer number (6404898000).

Almost surely, 2^51235772766 is an apocalyptic number.

51235772766 is an abundant number, since it is smaller than the sum of its proper divisors (51242595234).

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

51235772766 is a wasteful number, since it uses less digits than its factorization.

51235772766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568543.

The product of its digits is 3704400, while the sum is 51.

The spelling of 51235772766 in words is "fifty-one billion, two hundred thirty-five million, seven hundred seventy-two thousand, seven hundred sixty-six".