745007337021 has 32 divisors (see below), whose sum is σ = 1022728291200. Its totient is φ = 482046888960.

The previous prime is 745007336999. The next prime is 745007337037. The reversal of 745007337021 is 120733700547.

It is not a de Polignac number, because 745007337021 - 2¹³ = 745007328829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745007377021) 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, 171698070 + ... + 171702408.

It is an arithmetic number, because the mean of its divisors is an integer number (31960259100).

Almost surely, 2^745007337021 is an apocalyptic number.

It is an amenable number.

745007337021 is a deficient number, since it is larger than the sum of its proper divisors (277720954179).

745007337021 is a wasteful number, since it uses less digits than its factorization.

745007337021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7869.

The product of its (nonzero) digits is 123480, while the sum is 39.

The spelling of 745007337021 in words is "seven hundred forty-five billion, seven million, three hundred thirty-seven thousand, twenty-one".