7387991472 has 40 divisors (see below), whose sum is σ = 19091724480. Its totient is φ = 2461879360.

The previous prime is 7387991467. The next prime is 7387991473. The reversal of 7387991472 is 2741997837.

It is not an unprimeable number, because it can be changed into a prime (7387991473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138979 + ... + 184637.

It is an arithmetic number, because the mean of its divisors is an integer number (477293112).

Almost surely, 2^7387991472 is an apocalyptic number.

It is an amenable number.

7387991472 is an abundant number, since it is smaller than the sum of its proper divisors (11703733008).

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

7387991472 is a wasteful number, since it uses less digits than its factorization.

7387991472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49041 (or 49035 counting only the distinct ones).

The product of its digits is 5334336, while the sum is 57.

The square root of 7387991472 is about 85953.4261795305. The cubic root of 7387991472 is about 1947.6404923576.

The spelling of 7387991472 in words is "seven billion, three hundred eighty-seven million, nine hundred ninety-one thousand, four hundred seventy-two".