617404139040 has 96 divisors (see below), whose sum is σ = 2094424831296. Its totient is φ = 151976401920.

The previous prime is 617404139029. The next prime is 617404139057. The reversal of 617404139040 is 40931404716.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 617404139040.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49465246 + ... + 49477725.

It is an arithmetic number, because the mean of its divisors is an integer number (21816925326).

Almost surely, 2^617404139040 is an apocalyptic number.

617404139040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

617404139040 is an abundant number, since it is smaller than the sum of its proper divisors (1477020692256).

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

617404139040 is a wasteful number, since it uses less digits than its factorization.

617404139040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98943002 (or 98942994 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 617404139040 in words is "six hundred seventeen billion, four hundred four million, one hundred thirty-nine thousand, forty".