7537408668 has 60 divisors (see below), whose sum is σ = 19907494992. Its totient is φ = 2486557440.

The previous prime is 7537408657. The next prime is 7537408691. The reversal of 7537408668 is 8668047357.

7537408668 is a `hidden beast` number, since 7 + 537 + 40 + 8 + 6 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 88488 + ... + 151343.

Almost surely, 2^7537408668 is an apocalyptic number.

It is an amenable number.

7537408668 is an abundant number, since it is smaller than the sum of its proper divisors (12370086324).

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

7537408668 is a wasteful number, since it uses less digits than its factorization.

7537408668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239944 (or 239933 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The square root of 7537408668 is about 86818.2507771263. The cubic root of 7537408668 is about 1960.6828687509.

The spelling of 7537408668 in words is "seven billion, five hundred thirty-seven million, four hundred eight thousand, six hundred sixty-eight".