307702074681 has 9 divisors (see below), whose sum is σ = 444460956069. Its totient is φ = 205133607036.

The previous prime is 307702074671. The next prime is 307702074683. The reversal of 307702074681 is 186470207703.

The square root of 307702074681 is 554709.

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

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 307702074681 - 2⁷ = 307702074553 is a prime.

It is a super-2 number, since 2×307702074681² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (307702074683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1571676 + ... + 1756578.

Almost surely, 2^307702074681 is an apocalyptic number.

307702074681 is the 554709-th square number.

307702074681 is the 277355-th centered octagonal number.

It is an amenable number.

307702074681 is a deficient number, since it is larger than the sum of its proper divisors (136758881388).

307702074681 is an frugal number, since it uses more digits than its factorization.

307702074681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369812 (or 184906 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The spelling of 307702074681 in words is "three hundred seven billion, seven hundred two million, seventy-four thousand, six hundred eighty-one".