39948662880 has 144 divisors (see below), whose sum is σ = 155799824544. Its totient is φ = 9131120640.

The previous prime is 39948662851. The next prime is 39948662881. The reversal of 39948662880 is 8826684993.

39948662880 is a `hidden beast` number, since 3 + 99 + 486 + 62 + 8 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39948662881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1971501 + ... + 1991660.

It is an arithmetic number, because the mean of its divisors is an integer number (1081943226).

Almost surely, 2^39948662880 is an apocalyptic number.

39948662880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

39948662880 is an abundant number, since it is smaller than the sum of its proper divisors (115851161664).

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

39948662880 is a wasteful number, since it uses less digits than its factorization.

39948662880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3963189 (or 3963178 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 63.

The spelling of 39948662880 in words is "thirty-nine billion, nine hundred forty-eight million, six hundred sixty-two thousand, eight hundred eighty".