851514690 has 32 divisors (see below), whose sum is σ = 2200838976. Its totient is φ = 209603520.

The previous prime is 851514673. The next prime is 851514701. The reversal of 851514690 is 96415158.

It is a super-2 number, since 2×851514690² = 1450154534571592200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1091296 + ... + 1092075.

It is an arithmetic number, because the mean of its divisors is an integer number (68776218).

Almost surely, 2^851514690 is an apocalyptic number.

851514690 is an abundant number, since it is smaller than the sum of its proper divisors (1349324286).

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

851514690 is a wasteful number, since it uses less digits than its factorization.

851514690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183394.

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

The square root of 851514690 is about 29180.7246311671. The cubic root of 851514690 is about 947.8305769086.

The spelling of 851514690 in words is "eight hundred fifty-one million, five hundred fourteen thousand, six hundred ninety".