140138888900 has 36 divisors (see below), whose sum is σ = 304239285252. Its totient is φ = 56030136960.

The previous prime is 140138888881. The next prime is 140138888927. The reversal of 140138888900 is 9888831041.

It can be written as a sum of positive squares in 6 ways, for example, as 23464725124 + 116674163776 = 153182^2 + 341576^2 .

It is a Harshad number since it is a multiple of its sum of digits (50).

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, 95327 + ... + 537926.

It is an arithmetic number, because the mean of its divisors is an integer number (8451091257).

Almost surely, 2^140138888900 is an apocalyptic number.

140138888900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140138888900 is an abundant number, since it is smaller than the sum of its proper divisors (164100396352).

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

140138888900 is a wasteful number, since it uses less digits than its factorization.

140138888900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635480 (or 635473 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 50.

The spelling of 140138888900 in words is "one hundred forty billion, one hundred thirty-eight million, eight hundred eighty-eight thousand, nine hundred".