745340173431 has 64 divisors (see below), whose sum is σ = 1223775682560. Its totient is φ = 394117701120.

The previous prime is 745340173423. The next prime is 745340173433. The reversal of 745340173431 is 134371043547.

It is not a de Polignac number, because 745340173431 - 2³ = 745340173423 is a prime.

It is a super-4 number, since 4×745340173431⁴ (a number of 49 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745340173433) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 58732735 + ... + 58745423.

It is an arithmetic number, because the mean of its divisors is an integer number (19121495040).

Almost surely, 2^745340173431 is an apocalyptic number.

745340173431 is a deficient number, since it is larger than the sum of its proper divisors (478435509129).

745340173431 is a wasteful number, since it uses less digits than its factorization.

745340173431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16676.

The product of its (nonzero) digits is 423360, while the sum is 42.

The spelling of 745340173431 in words is "seven hundred forty-five billion, three hundred forty million, one hundred seventy-three thousand, four hundred thirty-one".