49697904838 has 16 divisors (see below), whose sum is σ = 78474726000. Its totient is φ = 23539807872.

The previous prime is 49697904827. The next prime is 49697904859. The reversal of 49697904838 is 83840979694.

49697904838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1263858 + ... + 1302586.

It is an arithmetic number, because the mean of its divisors is an integer number (4904670375).

Almost surely, 2^49697904838 is an apocalyptic number.

49697904838 is a deficient number, since it is larger than the sum of its proper divisors (28776821162).

49697904838 is a wasteful number, since it uses less digits than its factorization.

49697904838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72519.

The product of its (nonzero) digits is 94058496, while the sum is 67.

The spelling of 49697904838 in words is "forty-nine billion, six hundred ninety-seven million, nine hundred four thousand, eight hundred thirty-eight".