7487213788 has 12 divisors (see below), whose sum is σ = 13229834800. Its totient is φ = 3707260992.

The previous prime is 7487213743. The next prime is 7487213791. The reversal of 7487213788 is 8873127847.

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, 9086013 + ... + 9086836.

Almost surely, 2^7487213788 is an apocalyptic number.

It is an amenable number.

7487213788 is a deficient number, since it is larger than the sum of its proper divisors (5742621012).

7487213788 is a wasteful number, since it uses less digits than its factorization.

7487213788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18172956 (or 18172954 counting only the distinct ones).

The product of its digits is 4214784, while the sum is 55.

The square root of 7487213788 is about 86528.6876590648. The cubic root of 7487213788 is about 1956.3208250200.

The spelling of 7487213788 in words is "seven billion, four hundred eighty-seven million, two hundred thirteen thousand, seven hundred eighty-eight".