851038929455 has 128 divisors (see below), whose sum is σ = 1281216061440. Its totient is φ = 533760860160.

The previous prime is 851038929443. The next prime is 851038929463. The reversal of 851038929455 is 554929830158.

It is not a de Polignac number, because 851038929455 - 2²⁰ = 851037880879 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 851038929394 and 851038929403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 547995959 + ... + 547997511.

It is an arithmetic number, because the mean of its divisors is an integer number (10009500480).

Almost surely, 2^851038929455 is an apocalyptic number.

851038929455 is a deficient number, since it is larger than the sum of its proper divisors (430177131985).

851038929455 is a wasteful number, since it uses less digits than its factorization.

851038929455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2361.

The product of its (nonzero) digits is 15552000, while the sum is 59.

The spelling of 851038929455 in words is "eight hundred fifty-one billion, thirty-eight million, nine hundred twenty-nine thousand, four hundred fifty-five".