49615377668 has 12 divisors (see below), whose sum is σ = 89820942540. Its totient is φ = 23952251232.

The previous prime is 49615377607. The next prime is 49615377689. The reversal of 49615377668 is 86677351694.

It can be written as a sum of positive squares in 2 ways, for example, as 18363502144 + 31251875524 = 135512^2 + 176782^2 .

It is a super-2 number, since 2×49615377668² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49615377668.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213859271 + ... + 213859502.

It is an arithmetic number, because the mean of its divisors is an integer number (7485078545).

Almost surely, 2^49615377668 is an apocalyptic number.

It is an amenable number.

49615377668 is a deficient number, since it is larger than the sum of its proper divisors (40205564872).

49615377668 is a wasteful number, since it uses less digits than its factorization.

49615377668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427718806 (or 427718804 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 62.

The spelling of 49615377668 in words is "forty-nine billion, six hundred fifteen million, three hundred seventy-seven thousand, six hundred sixty-eight".