153942731822 has 12 divisors (see below), whose sum is σ = 253814669808. Its totient is φ = 69973968900.

The previous prime is 153942731807. The next prime is 153942731837. The reversal of 153942731822 is 228137249351.

It is an interprime number because it is at equal distance from previous prime (153942731807) and next prime (153942731837).

It is a super-2 number, since 2×153942731822² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 318063254 + ... + 318063737.

It is an arithmetic number, because the mean of its divisors is an integer number (21151222484).

Almost surely, 2^153942731822 is an apocalyptic number.

153942731822 is a deficient number, since it is larger than the sum of its proper divisors (99871937986).

153942731822 is a wasteful number, since it uses less digits than its factorization.

153942731822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636127015 (or 636127004 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The spelling of 153942731822 in words is "one hundred fifty-three billion, nine hundred forty-two million, seven hundred thirty-one thousand, eight hundred twenty-two".