745161239808 has 108 divisors (see below), whose sum is σ = 2194196292288. Its totient is φ = 243102213120.

The previous prime is 745161239701. The next prime is 745161239833. The reversal of 745161239808 is 808932161547.

745161239808 is a `hidden beast` number, since 7 + 4 + 516 + 12 + 39 + 80 + 8 = 666.

It is a super-3 number, since 3×745161239808³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3332358 + ... + 3548933.

It is an arithmetic number, because the mean of its divisors is an integer number (20316632336).

It is a 1-persistent number, because it is pandigital, but 2⋅745161239808 = 1490322479616 is not.

Almost surely, 2^745161239808 is an apocalyptic number.

It is an amenable number.

745161239808 is an abundant number, since it is smaller than the sum of its proper divisors (1449035052480).

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

745161239808 is a wasteful number, since it uses less digits than its factorization.

745161239808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6881360 (or 6881343 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 745161239808 in words is "seven hundred forty-five billion, one hundred sixty-one million, two hundred thirty-nine thousand, eight hundred eight".