49215249438 has 16 divisors (see below), whose sum is σ = 98804762496. Its totient is φ = 16342705880.

The previous prime is 49215249431. The next prime is 49215249487. The reversal of 49215249438 is 83494251294.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49215249431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15592608 + ... + 15595763.

It is an arithmetic number, because the mean of its divisors is an integer number (6175297656).

Almost surely, 2^49215249438 is an apocalyptic number.

49215249438 is an abundant number, since it is smaller than the sum of its proper divisors (49589513058).

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

49215249438 is a wasteful number, since it uses less digits than its factorization.

49215249438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31188639.

The product of its digits is 2488320, while the sum is 51.

The spelling of 49215249438 in words is "forty-nine billion, two hundred fifteen million, two hundred forty-nine thousand, four hundred thirty-eight".