140426610820 has 24 divisors (see below), whose sum is σ = 294907264344. Its totient is φ = 56168476416.

The previous prime is 140426610811. The next prime is 140426610833. The reversal of 140426610820 is 28016624041.

It can be written as a sum of positive squares in 4 ways, for example, as 3769223236 + 136657387584 = 61394^2 + 369672^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459354 + ... + 701326.

It is an arithmetic number, because the mean of its divisors is an integer number (12287802681).

Almost surely, 2^140426610820 is an apocalyptic number.

140426610820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140426610820 is an abundant number, since it is smaller than the sum of its proper divisors (154480653524).

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

140426610820 is a wasteful number, since it uses less digits than its factorization.

140426610820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270999 (or 270997 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 140426610820 in words is "one hundred forty billion, four hundred twenty-six million, six hundred ten thousand, eight hundred twenty".