140042647690 has 16 divisors (see below), whose sum is σ = 274992835680. Its totient is φ = 50924599120.

The previous prime is 140042647681. The next prime is 140042647691. The reversal of 140042647690 is 96746240041.

It is a super-2 number, since 2×140042647690² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140042647691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 636557380 + ... + 636557599.

It is an arithmetic number, because the mean of its divisors is an integer number (17187052230).

Almost surely, 2^140042647690 is an apocalyptic number.

140042647690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140042647690 is a deficient number, since it is larger than the sum of its proper divisors (134950187990).

140042647690 is a wasteful number, since it uses less digits than its factorization.

140042647690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273114997.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 140042647690 in words is "one hundred forty billion, forty-two million, six hundred forty-seven thousand, six hundred ninety".