745294678730 has 64 divisors (see below), whose sum is σ = 1616308273152. Its totient is φ = 242025261120.

The previous prime is 745294678669. The next prime is 745294678753. The reversal of 745294678730 is 37876492547.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3551774 + ... + 3755753.

It is an arithmetic number, because the mean of its divisors is an integer number (25254816768).

Almost surely, 2^745294678730 is an apocalyptic number.

745294678730 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

745294678730 is an abundant number, since it is smaller than the sum of its proper divisors (871013594422).

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

745294678730 is a wasteful number, since it uses less digits than its factorization.

745294678730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7307619.

The product of its (nonzero) digits is 71124480, while the sum is 62.

The spelling of 745294678730 in words is "seven hundred forty-five billion, two hundred ninety-four million, six hundred seventy-eight thousand, seven hundred thirty".