49782570651 has 16 divisors (see below), whose sum is σ = 80456680320. Its totient is φ = 30171254760.

The previous prime is 49782570647. The next prime is 49782570667. The reversal of 49782570651 is 15607528794.

49782570651 is a `hidden beast` number, since 4 + 9 + 7 + 8 + 2 + 570 + 65 + 1 = 666.

It is not a de Polignac number, because 49782570651 - 2² = 49782570647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49782570601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83808745 + ... + 83809338.

It is an arithmetic number, because the mean of its divisors is an integer number (5028542520).

Almost surely, 2^49782570651 is an apocalyptic number.

49782570651 is a deficient number, since it is larger than the sum of its proper divisors (30674109669).

49782570651 is a wasteful number, since it uses less digits than its factorization.

49782570651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167618103 (or 167618097 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 54.

The spelling of 49782570651 in words is "forty-nine billion, seven hundred eighty-two million, five hundred seventy thousand, six hundred fifty-one".