49307408640 has 360 divisors, whose sum is σ = 201638310720. Its totient is φ = 11270098944.

The previous prime is 49307408567. The next prime is 49307408681. The reversal of 49307408640 is 4680470394.

49307408640 is a `hidden beast` number, since 493 + 0 + 7 + 40 + 86 + 40 = 666.

49307408640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 691791 + ... + 759729.

Almost surely, 2^49307408640 is an apocalyptic number.

49307408640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49307408640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100819155360).

49307408640 is an abundant number, since it is smaller than the sum of its proper divisors (152330902080).

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

49307408640 is an equidigital number, since it uses as much as digits as its factorization.

49307408640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67979 (or 67956 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 49307408640 in words is "forty-nine billion, three hundred seven million, four hundred eight thousand, six hundred forty".