307668864453840 has 100 divisors (see below), whose sum is σ = 1068579546843204. Its totient is φ = 82045030519296.

The previous prime is 307668864453833. The next prime is 307668864453857. The reversal of 307668864453840 is 48354468866703.

It is a happy number.

307668864453840 is a `hidden beast` number, since 3 + 0 + 7 + 6 + 6 + 8 + 8 + 6 + 44 + 538 + 40 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 146638246487184 + 161030617966656 = 12109428^2 + 12689784^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23739875037 + ... + 23739887996.

Almost surely, 2^{307668864453840} is an apocalyptic number.

307668864453840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

307668864453840 is an abundant number, since it is smaller than the sum of its proper divisors (760910682389364).

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

307668864453840 is a wasteful number, since it uses less digits than its factorization.

307668864453840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47479763058 (or 47479763043 counting only the distinct ones).

The product of its (nonzero) digits is 2229534720, while the sum is 72.

The spelling of 307668864453840 in words is "three hundred seven trillion, six hundred sixty-eight billion, eight hundred sixty-four million, four hundred fifty-three thousand, eight hundred forty".