49291662816 has 72 divisors (see below), whose sum is σ = 152916191064. Its totient is φ = 14936866560.

The previous prime is 49291662793. The next prime is 49291662857. The reversal of 49291662816 is 61826619294.

49291662816 is a `hidden beast` number, since 4 + 9 + 2 + 9 + 1 + 6 + 628 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7776451 + ... + 7782786.

It is an arithmetic number, because the mean of its divisors is an integer number (2123835987).

Almost surely, 2^49291662816 is an apocalyptic number.

It is an amenable number.

49291662816 is an abundant number, since it is smaller than the sum of its proper divisors (103624528248).

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

49291662816 is a wasteful number, since it uses less digits than its factorization.

49291662816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15559264 (or 15559253 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The spelling of 49291662816 in words is "forty-nine billion, two hundred ninety-one million, six hundred sixty-two thousand, eight hundred sixteen".