745303077171631 has 8 divisors (see below), whose sum is σ = 813058149157200. Its totient is φ = 677548046317440.

The previous prime is 745303077171619. The next prime is 745303077171659. The reversal of 745303077171631 is 136171770303547.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 745303077171631 - 2⁵ = 745303077171599 is a prime.

It is a super-2 number, since 2×745303077171631² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745303077171671) 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, 37095885 + ... + 53541673.

It is an arithmetic number, because the mean of its divisors is an integer number (101632268644650).

Almost surely, 2^{745303077171631} is an apocalyptic number.

745303077171631 is a deficient number, since it is larger than the sum of its proper divisors (67755071985569).

745303077171631 is a wasteful number, since it uses less digits than its factorization.

745303077171631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20565689.

The product of its (nonzero) digits is 7779240, while the sum is 55.

The spelling of 745303077171631 in words is "seven hundred forty-five trillion, three hundred three billion, seventy-seven million, one hundred seventy-one thousand, six hundred thirty-one".