49999999942 has 16 divisors (see below), whose sum is σ = 76602617280. Its totient is φ = 24465889728.

The previous prime is 49999999867. The next prime is 49999999957. The reversal of 49999999942 is 24999999994.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1652284 + ... + 1682272.

It is an arithmetic number, because the mean of its divisors is an integer number (4787663580).

Almost surely, 2^49999999942 is an apocalyptic number.

49999999942 is a deficient number, since it is larger than the sum of its proper divisors (26602617338).

49999999942 is a wasteful number, since it uses less digits than its factorization.

49999999942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47775.

The product of its digits is 1377495072, while the sum is 82.

The spelling of 49999999942 in words is "forty-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred forty-two".