307226539897728 has 512 divisors, whose sum is σ = 957347577446400. Its totient is φ = 86408411136000.

The previous prime is 307226539897691. The next prime is 307226539897729. The reversal of 307226539897728 is 827798935622703.

It is a super-2 number, since 2×307226539897728² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307226539897729) 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, 316268575 + ... + 317238497.

It is an arithmetic number, because the mean of its divisors is an integer number (1869819487200).

Almost surely, 2^{307226539897728} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 307226539897728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (478673788723200).

307226539897728 is an abundant number, since it is smaller than the sum of its proper divisors (650121037548672).

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

307226539897728 is a wasteful number, since it uses less digits than its factorization.

307226539897728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970082 (or 970070 counting only the distinct ones).

The product of its (nonzero) digits is 3840721920, while the sum is 78.

The spelling of 307226539897728 in words is "three hundred seven trillion, two hundred twenty-six billion, five hundred thirty-nine million, eight hundred ninety-seven thousand, seven hundred twenty-eight".