49696345638 has 16 divisors (see below), whose sum is σ = 110436323760. Its totient is φ = 16565448528.

The previous prime is 49696345609. The next prime is 49696345681. The reversal of 49696345638 is 83654369694.

It is a happy number.

49696345638 is a `hidden beast` number, since 4 + 9 + 6 + 9 + 63 + 4 + 563 + 8 = 666.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460151295 + ... + 460151402.

It is an arithmetic number, because the mean of its divisors is an integer number (6902270235).

Almost surely, 2^49696345638 is an apocalyptic number.

49696345638 is an abundant number, since it is smaller than the sum of its proper divisors (60739978122).

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

49696345638 is a wasteful number, since it uses less digits than its factorization.

49696345638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920302708 (or 920302702 counting only the distinct ones).

The product of its digits is 100776960, while the sum is 63.

The spelling of 49696345638 in words is "forty-nine billion, six hundred ninety-six million, three hundred forty-five thousand, six hundred thirty-eight".