49139743466 has 32 divisors (see below), whose sum is σ = 81641903616. Its totient is φ = 21995926000.

The previous prime is 49139743439. The next prime is 49139743607. The reversal of 49139743466 is 66434793194.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 524621 + ... + 611151.

It is an arithmetic number, because the mean of its divisors is an integer number (2551309488).

Almost surely, 2^49139743466 is an apocalyptic number.

49139743466 is a deficient number, since it is larger than the sum of its proper divisors (32502160150).

49139743466 is a wasteful number, since it uses less digits than its factorization.

49139743466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86938.

The product of its digits is 11757312, while the sum is 56.

The spelling of 49139743466 in words is "forty-nine billion, one hundred thirty-nine million, seven hundred forty-three thousand, four hundred sixty-six".