7538386780 has 12 divisors (see below), whose sum is σ = 15830612280. Its totient is φ = 3015354704.

The previous prime is 7538386727. The next prime is 7538386799. The reversal of 7538386780 is 876838357.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188459650 + ... + 188459689.

It is an arithmetic number, because the mean of its divisors is an integer number (1319217690).

Almost surely, 2^7538386780 is an apocalyptic number.

It is an amenable number.

7538386780 is an abundant number, since it is smaller than the sum of its proper divisors (8292225500).

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

7538386780 is a wasteful number, since it uses less digits than its factorization.

7538386780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376919348 (or 376919346 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 55.

The square root of 7538386780 is about 86823.8836956744. The cubic root of 7538386780 is about 1960.7676761685.

The spelling of 7538386780 in words is "seven billion, five hundred thirty-eight million, three hundred eighty-six thousand, seven hundred eighty".