48194451639 has 24 divisors (see below), whose sum is σ = 71572439120. Its totient is φ = 31227700608.

The previous prime is 48194451601. The next prime is 48194451659. The reversal of 48194451639 is 93615449184.

48194451639 is a `hidden beast` number, since 4 + 8 + 1 + 94 + 4 + 516 + 39 = 666.

It is not a de Polignac number, because 48194451639 - 2⁷ = 48194451511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48194451659) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234792 + ... + 389250.

Almost surely, 2^48194451639 is an apocalyptic number.

48194451639 is a deficient number, since it is larger than the sum of its proper divisors (23377987481).

48194451639 is a wasteful number, since it uses less digits than its factorization.

48194451639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155439 (or 155436 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The spelling of 48194451639 in words is "forty-eight billion, one hundred ninety-four million, four hundred fifty-one thousand, six hundred thirty-nine".