307939213797 has 4 divisors (see below), whose sum is σ = 410585618400. Its totient is φ = 205292809196.

The previous prime is 307939213789. The next prime is 307939213843. The reversal of 307939213797 is 797312939703.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 307939213797 - 2³ = 307939213789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 307939213797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307939213597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51323202297 + ... + 51323202302.

It is an arithmetic number, because the mean of its divisors is an integer number (102646404600).

Almost surely, 2^307939213797 is an apocalyptic number.

It is an amenable number.

307939213797 is a deficient number, since it is larger than the sum of its proper divisors (102646404603).

307939213797 is a wasteful number, since it uses less digits than its factorization.

307939213797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102646404602.

The product of its (nonzero) digits is 13502538, while the sum is 60.

The spelling of 307939213797 in words is "three hundred seven billion, nine hundred thirty-nine million, two hundred thirteen thousand, seven hundred ninety-seven".