79750906440 has 32 divisors (see below), whose sum is σ = 239252719680. Its totient is φ = 21266908352.

The previous prime is 79750906423. The next prime is 79750906457. The reversal of 79750906440 is 4460905797.

It is an interprime number because it is at equal distance from previous prime (79750906423) and next prime (79750906457).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332295324 + ... + 332295563.

It is an arithmetic number, because the mean of its divisors is an integer number (7476647490).

Almost surely, 2^79750906440 is an apocalyptic number.

It is an amenable number.

79750906440 is an abundant number, since it is smaller than the sum of its proper divisors (159501813240).

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

79750906440 is a wasteful number, since it uses less digits than its factorization.

79750906440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664590901 (or 664590897 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 51.

The spelling of 79750906440 in words is "seventy-nine billion, seven hundred fifty million, nine hundred six thousand, four hundred forty".