140818477743021 has 32 divisors (see below), whose sum is σ = 205065651587328. Its totient is φ = 85429971002880.

The previous prime is 140818477743019. The next prime is 140818477743023. The reversal of 140818477743021 is 120347774818041.

It is an interprime number because it is at equal distance from previous prime (140818477743019) and next prime (140818477743023).

It is not a de Polignac number, because 140818477743021 - 2¹ = 140818477743019 is a prime.

It is a super-2 number, since 2×140818477743021² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140818477743023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31688745 + ... + 35858241.

It is an arithmetic number, because the mean of its divisors is an integer number (6408301612104).

Almost surely, 2^{140818477743021} is an apocalyptic number.

It is an amenable number.

140818477743021 is a deficient number, since it is larger than the sum of its proper divisors (64247173844307).

140818477743021 is a wasteful number, since it uses less digits than its factorization.

140818477743021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4181781.

The product of its (nonzero) digits is 8429568, while the sum is 57.

The spelling of 140818477743021 in words is "one hundred forty trillion, eight hundred eighteen billion, four hundred seventy-seven million, seven hundred forty-three thousand, twenty-one".