742569323172 has 12 divisors (see below), whose sum is σ = 1732661754096. Its totient is φ = 247523107720.

The previous prime is 742569323071. The next prime is 742569323203. The reversal of 742569323172 is 271323965247.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×742569323172² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30940388454 + ... + 30940388477.

It is an arithmetic number, because the mean of its divisors is an integer number (144388479508).

Almost surely, 2^742569323172 is an apocalyptic number.

It is an amenable number.

742569323172 is an abundant number, since it is smaller than the sum of its proper divisors (990092430924).

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

742569323172 is a wasteful number, since it uses less digits than its factorization.

742569323172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61880776938 (or 61880776936 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 51.

The spelling of 742569323172 in words is "seven hundred forty-two billion, five hundred sixty-nine million, three hundred twenty-three thousand, one hundred seventy-two".