49143779232 has 24 divisors (see below), whose sum is σ = 129002420736. Its totient is φ = 16381259712.

The previous prime is 49143779227. The next prime is 49143779257. The reversal of 49143779232 is 23297734194.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×49143779232² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255957088 + ... + 255957279.

It is an arithmetic number, because the mean of its divisors is an integer number (5375100864).

Almost surely, 2^49143779232 is an apocalyptic number.

It is an amenable number.

49143779232 is an abundant number, since it is smaller than the sum of its proper divisors (79858641504).

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

49143779232 is a wasteful number, since it uses less digits than its factorization.

49143779232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511914380 (or 511914372 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 51.

The spelling of 49143779232 in words is "forty-nine billion, one hundred forty-three million, seven hundred seventy-nine thousand, two hundred thirty-two".