51202212939 has 8 divisors (see below), whose sum is σ = 75855130320. Its totient is φ = 34134808608.

The previous prime is 51202212923. The next prime is 51202212949. The reversal of 51202212939 is 93921220215.

It is not a de Polignac number, because 51202212939 - 2⁴ = 51202212923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51202212949) 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, 948189102 + ... + 948189155.

It is an arithmetic number, because the mean of its divisors is an integer number (9481891290).

Almost surely, 2^51202212939 is an apocalyptic number.

51202212939 is a deficient number, since it is larger than the sum of its proper divisors (24652917381).

51202212939 is a wasteful number, since it uses less digits than its factorization.

51202212939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896378266 (or 1896378260 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 51202212939 in words is "fifty-one billion, two hundred two million, two hundred twelve thousand, nine hundred thirty-nine".