51435191802 has 32 divisors (see below), whose sum is σ = 108410296320. Its totient is φ = 16223839920.

The previous prime is 51435191771. The next prime is 51435191813. The reversal of 51435191802 is 20819153415.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163024 + ... + 359787.

It is an arithmetic number, because the mean of its divisors is an integer number (3387821760).

Almost surely, 2^51435191802 is an apocalyptic number.

51435191802 is an abundant number, since it is smaller than the sum of its proper divisors (56975104518).

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

51435191802 is a wasteful number, since it uses less digits than its factorization.

51435191802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523698.

The product of its (nonzero) digits is 43200, while the sum is 39.

The spelling of 51435191802 in words is "fifty-one billion, four hundred thirty-five million, one hundred ninety-one thousand, eight hundred two".