49812759612 has 72 divisors (see below), whose sum is σ = 156985675392. Its totient is φ = 12938378400.

The previous prime is 49812759551. The next prime is 49812759691. The reversal of 49812759612 is 21695721894.

It is a happy number.

49812759612 is a `hidden beast` number, since 4 + 9 + 8 + 12 + 7 + 5 + 9 + 612 = 666.

It is a super-2 number, since 2×49812759612² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8982214 + ... + 8987757.

Almost surely, 2^49812759612 is an apocalyptic number.

49812759612 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

49812759612 is an abundant number, since it is smaller than the sum of its proper divisors (107172915780).

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

49812759612 is a wasteful number, since it uses less digits than its factorization.

49812759612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17969999 (or 17969994 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The spelling of 49812759612 in words is "forty-nine billion, eight hundred twelve million, seven hundred fifty-nine thousand, six hundred twelve".