742624574553 has 12 divisors (see below), whose sum is σ = 1083738498388. Its totient is φ = 489979100160.

The previous prime is 742624574509. The next prime is 742624574663. The reversal of 742624574553 is 355475426247.

742624574553 is a `hidden beast` number, since 7 + 4 + 2 + 62 + 4 + 574 + 5 + 5 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 161413508169 + 581211066384 = 401763^2 + 762372^2 .

It is not a de Polignac number, because 742624574553 - 2²⁸ = 742356139097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 742624574553.

It is not an unprimeable number, because it can be changed into a prime (742624574453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 425328208 + ... + 425329953.

Almost surely, 2^742624574553 is an apocalyptic number.

It is an amenable number.

742624574553 is a deficient number, since it is larger than the sum of its proper divisors (341113923835).

742624574553 is a wasteful number, since it uses less digits than its factorization.

742624574553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850658264 (or 850658261 counting only the distinct ones).

The product of its digits is 28224000, while the sum is 54.

The spelling of 742624574553 in words is "seven hundred forty-two billion, six hundred twenty-four million, five hundred seventy-four thousand, five hundred fifty-three".