745075330251 has 32 divisors (see below), whose sum is σ = 1205310435840. Its totient is φ = 399655420416.

The previous prime is 745075330249. The next prime is 745075330283. The reversal of 745075330251 is 152033570547.

It is not a de Polignac number, because 745075330251 - 2¹ = 745075330249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (745075330291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2618056 + ... + 2888661.

It is an arithmetic number, because the mean of its divisors is an integer number (37665951120).

Almost surely, 2^745075330251 is an apocalyptic number.

745075330251 is a deficient number, since it is larger than the sum of its proper divisors (460235105589).

745075330251 is a wasteful number, since it uses less digits than its factorization.

745075330251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5507123.

The product of its (nonzero) digits is 441000, while the sum is 42.

The spelling of 745075330251 in words is "seven hundred forty-five billion, seventy-five million, three hundred thirty thousand, two hundred fifty-one".