851376630 has 64 divisors (see below), whose sum is σ = 2242054080. Its totient is φ = 205610496.

The previous prime is 851376629. The next prime is 851376709. The reversal of 851376630 is 36673158.

It is a super-2 number, since 2×851376630² = 1449684332220313800, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76 + ... + 41264.

It is an arithmetic number, because the mean of its divisors is an integer number (35032095).

Almost surely, 2^851376630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 851376630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1121027040).

851376630 is an abundant number, since it is smaller than the sum of its proper divisors (1390677450).

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

851376630 is a wasteful number, since it uses less digits than its factorization.

851376630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41265.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 851376630 is about 29178.3589326062. The cubic root of 851376630 is about 947.7793487604.

The spelling of 851376630 in words is "eight hundred fifty-one million, three hundred seventy-six thousand, six hundred thirty".