44634837978 has 24 divisors (see below), whose sum is σ = 96762942900. Its totient is φ = 14869952064.

The previous prime is 44634837931. The next prime is 44634837991. The reversal of 44634837978 is 87973843644.

It is a happy number.

44634837978 is a `hidden beast` number, since 4 + 4 + 63 + 483 + 7 + 97 + 8 = 666.

44634837978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 38131544529 + 6503293449 = 195273^2 + 80643^2 .

It is a super-2 number, since 2×44634837978² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 660843 + ... + 725246.

Almost surely, 2^44634837978 is an apocalyptic number.

44634837978 is an abundant number, since it is smaller than the sum of its proper divisors (52128104922).

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

44634837978 is a wasteful number, since it uses less digits than its factorization.

44634837978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387886 (or 1387883 counting only the distinct ones).

The product of its digits is 97542144, while the sum is 63.

The spelling of 44634837978 in words is "forty-four billion, six hundred thirty-four million, eight hundred thirty-seven thousand, nine hundred seventy-eight".