93949397640 has 128 divisors (see below), whose sum is σ = 357902496000. Its totient is φ = 21474146304.

The previous prime is 93949397617. The next prime is 93949397653. The reversal of 93949397640 is 4679394939.

93949397640 is a `hidden beast` number, since 9 + 39 + 493 + 9 + 76 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6206025 + ... + 6221144.

It is an arithmetic number, because the mean of its divisors is an integer number (2796113250).

Almost surely, 2^93949397640 is an apocalyptic number.

93949397640 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

93949397640 is an abundant number, since it is smaller than the sum of its proper divisors (263953098360).

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

93949397640 is a wasteful number, since it uses less digits than its factorization.

93949397640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12427196 (or 12427186 counting only the distinct ones).

The product of its (nonzero) digits is 39680928, while the sum is 63.

The spelling of 93949397640 in words is "ninety-three billion, nine hundred forty-nine million, three hundred ninety-seven thousand, six hundred forty".