791261650 has 48 divisors (see below), whose sum is σ = 1591148160. Its totient is φ = 291729600.

The previous prime is 791261609. The next prime is 791261741. The reversal of 791261650 is 56162197.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23895 + ... + 46405.

It is an arithmetic number, because the mean of its divisors is an integer number (33148920).

Almost surely, 2^791261650 is an apocalyptic number.

791261650 is an abundant number, since it is smaller than the sum of its proper divisors (799886510).

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

791261650 is a wasteful number, since it uses less digits than its factorization.

791261650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22579 (or 22574 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 791261650 is about 28129.3734377430. The cubic root of 791261650 is about 924.9253993891.

It can be divided in two parts, 791261 and 650, that added together give a triangular number (791911 = T₁₂₅₈).

The spelling of 791261650 in words is "seven hundred ninety-one million, two hundred sixty-one thousand, six hundred fifty".