851375577850 has 24 divisors (see below), whose sum is σ = 1809781229088. Its totient is φ = 291900198000.

The previous prime is 851375577809. The next prime is 851375577851. The reversal of 851375577850 is 58775573158.

It is not an unprimeable number, because it can be changed into a prime (851375577851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1216250476 + ... + 1216251175.

It is an arithmetic number, because the mean of its divisors is an integer number (75407551212).

Almost surely, 2^851375577850 is an apocalyptic number.

851375577850 is an abundant number, since it is smaller than the sum of its proper divisors (958405651238).

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

851375577850 is a wasteful number, since it uses less digits than its factorization.

851375577850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2432501670 (or 2432501665 counting only the distinct ones).

The product of its (nonzero) digits is 41160000, while the sum is 61.

The spelling of 851375577850 in words is "eight hundred fifty-one billion, three hundred seventy-five million, five hundred seventy-seven thousand, eight hundred fifty".