49180542957 has 80 divisors (see below), whose sum is σ = 92345713152. Its totient is φ = 25389262080.

The previous prime is 49180542953. The next prime is 49180542977. The reversal of 49180542957 is 75924508194.

It is a happy number.

49180542957 is a `hidden beast` number, since 4 + 9 + 1 + 8 + 0 + 542 + 95 + 7 = 666.

It is not a de Polignac number, because 49180542957 - 2² = 49180542953 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49180542953) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 275457 + ... + 417417.

Almost surely, 2^49180542957 is an apocalyptic number.

49180542957 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

49180542957 is a deficient number, since it is larger than the sum of its proper divisors (43165170195).

49180542957 is a wasteful number, since it uses less digits than its factorization.

49180542957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142040 (or 142031 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 49180542957 in words is "forty-nine billion, one hundred eighty million, five hundred forty-two thousand, nine hundred fifty-seven".