307681433748 has 144 divisors (see below), whose sum is σ = 884896346880. Its totient is φ = 89461677312.

The previous prime is 307681433707. The next prime is 307681433767. The reversal of 307681433748 is 847334186703.

It is a junction number, because it is equal to n+sod(n) for n = 307681433694 and 307681433703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 396711 + ... + 879057.

It is an arithmetic number, because the mean of its divisors is an integer number (6145113520).

Almost surely, 2^307681433748 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 307681433748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (442448173440).

307681433748 is an abundant number, since it is smaller than the sum of its proper divisors (577214913132).

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

307681433748 is a wasteful number, since it uses less digits than its factorization.

307681433748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482446 (or 482441 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 54.

The spelling of 307681433748 in words is "three hundred seven billion, six hundred eighty-one million, four hundred thirty-three thousand, seven hundred forty-eight".