49646430720 has 120 divisors (see below), whose sum is σ = 171939632436. Its totient is φ = 13239042048.

The previous prime is 49646430707. The next prime is 49646430727. The reversal of 49646430720 is 2703464694.

It is a happy number.

49646430720 is a `hidden beast` number, since 4 + 96 + 464 + 30 + 72 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 45686497536 + 3959933184 = 213744^2 + 62928^2 .

It is a tau number, because it is divible by the number of its divisors (120).

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

It is not an unprimeable number, because it can be changed into a prime (49646430727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1054357 + ... + 1100436.

Almost surely, 2^49646430720 is an apocalyptic number.

49646430720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49646430720 is an abundant number, since it is smaller than the sum of its proper divisors (122293201716).

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

49646430720 is a wasteful number, since it uses less digits than its factorization.

49646430720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2154822 (or 2154803 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The spelling of 49646430720 in words is "forty-nine billion, six hundred forty-six million, four hundred thirty thousand, seven hundred twenty".