851499264 has 432 divisors, whose sum is σ = 3070218816. Its totient is φ = 208158720.

The previous prime is 851499239. The next prime is 851499317. The reversal of 851499264 is 462994158.

It is a Harshad number since it is a multiple of its sum of digits (48).

Its product of digits (622080) is a multiple of the sum of its prime divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50088184 + ... + 50088200.

It is an arithmetic number, because the mean of its divisors is an integer number (7106988).

Almost surely, 2^851499264 is an apocalyptic number.

851499264 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 851499264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1535109408).

851499264 is an abundant number, since it is smaller than the sum of its proper divisors (2218719552).

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

851499264 is a wasteful number, since it uses less digits than its factorization.

851499264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83 (or 40 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The square root of 851499264 is about 29180.4603116538. The cubic root of 851499264 is about 947.8248532560.

The spelling of 851499264 in words is "eight hundred fifty-one million, four hundred ninety-nine thousand, two hundred sixty-four".