7930772137 has 4 divisors (see below), whose sum is σ = 7932234640. Its totient is φ = 7929309636.

The previous prime is 7930772131. The next prime is 7930772167. The reversal of 7930772137 is 7312770397.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7312770397 = 23 ⋅317946539.

It is a cyclic number.

It is not a de Polignac number, because 7930772137 - 2¹⁹ = 7930247849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7930772131) 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, 723087 + ... + 733972.

It is an arithmetic number, because the mean of its divisors is an integer number (1983058660).

Almost surely, 2^7930772137 is an apocalyptic number.

It is an amenable number.

7930772137 is a deficient number, since it is larger than the sum of its proper divisors (1462503).

7930772137 is a wasteful number, since it uses less digits than its factorization.

7930772137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462502.

The product of its (nonzero) digits is 388962, while the sum is 46.

The square root of 7930772137 is about 89054.8827240820. The cubic root of 7930772137 is about 1994.2142903380.

The spelling of 7930772137 in words is "seven billion, nine hundred thirty million, seven hundred seventy-two thousand, one hundred thirty-seven".