49628391687 has 16 divisors (see below), whose sum is σ = 84026906880. Its totient is φ = 28359080856.

The previous prime is 49628391677. The next prime is 49628391689. The reversal of 49628391687 is 78619382694.

49628391687 is a `hidden beast` number, since 496 + 2 + 83 + 9 + 1 + 68 + 7 = 666.

It is not a de Polignac number, because 49628391687 - 2⁶ = 49628391623 is a prime.

It is a super-2 number, since 2×49628391687² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49628391689) 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, 131291853 + ... + 131292230.

It is an arithmetic number, because the mean of its divisors is an integer number (5251681680).

Almost surely, 2^49628391687 is an apocalyptic number.

49628391687 is a deficient number, since it is larger than the sum of its proper divisors (34398515193).

49628391687 is a wasteful number, since it uses less digits than its factorization.

49628391687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262584099 (or 262584093 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 63.

The spelling of 49628391687 in words is "forty-nine billion, six hundred twenty-eight million, three hundred ninety-one thousand, six hundred eighty-seven".