307607781376 has 135 divisors (see below), whose sum is σ = 716795065539. Its totient is φ = 131618930688.

The previous prime is 307607781329. The next prime is 307607781379. The reversal of 307607781376 is 673187706703.

The square root of 307607781376 is 554624.

It is a perfect power (a square), and thus also a powerful number.

It is not an unprimeable number, because it can be changed into a prime (307607781379) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 496942795 + ... + 496943413.

Almost surely, 2^307607781376 is an apocalyptic number.

307607781376 is the 554624-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 307607781376

307607781376 is an abundant number, since it is smaller than the sum of its proper divisors (409187284163).

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

307607781376 is an frugal number, since it uses more digits than its factorization.

307607781376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 6223392, while the sum is 55.

The spelling of 307607781376 in words is "three hundred seven billion, six hundred seven million, seven hundred eighty-one thousand, three hundred seventy-six".