49666507794 has 72 divisors (see below), whose sum is σ = 120253589820. Its totient is φ = 14761529856.

The previous prime is 49666507747. The next prime is 49666507801. The reversal of 49666507794 is 49770566694.

It can be written as a sum of positive squares in 2 ways, for example, as 48033297225 + 1633210569 = 219165^2 + 40413^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 114339 + ... + 335270.

Almost surely, 2^49666507794 is an apocalyptic number.

49666507794 is an abundant number, since it is smaller than the sum of its proper divisors (70587082026).

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

49666507794 is a wasteful number, since it uses less digits than its factorization.

49666507794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449672 (or 449650 counting only the distinct ones).

The product of its (nonzero) digits is 68584320, while the sum is 63.

The spelling of 49666507794 in words is "forty-nine billion, six hundred sixty-six million, five hundred seven thousand, seven hundred ninety-four".