788761980 has 72 divisors (see below), whose sum is σ = 2399862192. Its totient is φ = 209696256.

The previous prime is 788761979. The next prime is 788761993. The reversal of 788761980 is 89167887.

It is a super-2 number, since 2×788761980² = 1244290922187040800, which contains 22 as substring.

It is a congruent number.

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, 54159 + ... + 67161.

Almost surely, 2^788761980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 788761980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1199931096).

788761980 is an abundant number, since it is smaller than the sum of its proper divisors (1611100212).

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

788761980 is a wasteful number, since it uses less digits than its factorization.

788761980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13355 (or 13350 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 54.

The square root of 788761980 is about 28084.9066225971. The cubic root of 788761980 is about 923.9503965051.

The spelling of 788761980 in words is "seven hundred eighty-eight million, seven hundred sixty-one thousand, nine hundred eighty".