140625443988 has 36 divisors (see below), whose sum is σ = 356024485908. Its totient is φ = 46802012160.

The previous prime is 140625443851. The next prime is 140625443993. The reversal of 140625443988 is 889344526041.

140625443988 is a `hidden beast` number, since 1 + 4 + 0 + 6 + 2 + 544 + 3 + 98 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 68252607504 + 72372836484 = 261252^2 + 269022^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

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, 3023931 + ... + 3070082.

It is an arithmetic number, because the mean of its divisors is an integer number (9889569053).

Almost surely, 2^140625443988 is an apocalyptic number.

140625443988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

140625443988 is an abundant number, since it is smaller than the sum of its proper divisors (215399041920).

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

140625443988 is a wasteful number, since it uses less digits than its factorization.

140625443988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6094664 (or 6094659 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The spelling of 140625443988 in words is "one hundred forty billion, six hundred twenty-five million, four hundred forty-three thousand, nine hundred eighty-eight".