7538781120 has 112 divisors (see below), whose sum is σ = 25776875040. Its totient is φ = 1855696896.

The previous prime is 7538781073. The next prime is 7538781127. The reversal of 7538781120 is 211878357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7538781127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289555 + ... + 314514.

It is an arithmetic number, because the mean of its divisors is an integer number (230150670).

Almost surely, 2^7538781120 is an apocalyptic number.

It is an amenable number.

7538781120 is an abundant number, since it is smaller than the sum of its proper divisors (18238093920).

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

7538781120 is a wasteful number, since it uses less digits than its factorization.

7538781120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604102 (or 604092 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 42.

The square root of 7538781120 is about 86826.1545848945. The cubic root of 7538781120 is about 1960.8018654305.

The spelling of 7538781120 in words is "seven billion, five hundred thirty-eight million, seven hundred eighty-one thousand, one hundred twenty".