307690931142 has 72 divisors (see below), whose sum is σ = 776852051976. Its totient is φ = 87759189504.

The previous prime is 307690931131. The next prime is 307690931147. The reversal of 307690931142 is 241139096703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307690931147) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 206613 + ... + 811215.

It is an arithmetic number, because the mean of its divisors is an integer number (10789611833).

Almost surely, 2^307690931142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 307690931142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388426025988).

307690931142 is an abundant number, since it is smaller than the sum of its proper divisors (469161120834).

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

307690931142 is a wasteful number, since it uses less digits than its factorization.

307690931142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605202 (or 605192 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The spelling of 307690931142 in words is "three hundred seven billion, six hundred ninety million, nine hundred thirty-one thousand, one hundred forty-two".