49531302639 has 108 divisors (see below), whose sum is σ = 90847501056. Its totient is φ = 25915728384.

The previous prime is 49531302619. The next prime is 49531302649. The reversal of 49531302639 is 93620313594.

49531302639 is a `hidden beast` number, since 4 + 9 + 5 + 3 + 1 + 3 + 0 + 2 + 639 = 666.

It is not a de Polignac number, because 49531302639 - 2⁵ = 49531302607 is a prime.

It is a super-2 number, since 2×49531302639² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 49531302594 and 49531302603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49531302619) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 9462567 + ... + 9467799.

Almost surely, 2^49531302639 is an apocalyptic number.

49531302639 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

49531302639 is a deficient number, since it is larger than the sum of its proper divisors (41316198417).

49531302639 is a wasteful number, since it uses less digits than its factorization.

49531302639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5406 (or 5383 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 45.

The spelling of 49531302639 in words is "forty-nine billion, five hundred thirty-one million, three hundred two thousand, six hundred thirty-nine".