4392689157 has 8 divisors (see below), whose sum is σ = 6507687680. Its totient is φ = 2928459420.

The previous prime is 4392689153. The next prime is 4392689179. The reversal of 4392689157 is 7519862934.

It is not a de Polignac number, because 4392689157 - 2² = 4392689153 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4392689153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81346069 + ... + 81346122.

It is an arithmetic number, because the mean of its divisors is an integer number (813460960).

Almost surely, 2^4392689157 is an apocalyptic number.

It is an amenable number.

4392689157 is a deficient number, since it is larger than the sum of its proper divisors (2114998523).

4392689157 is a wasteful number, since it uses less digits than its factorization.

4392689157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162692200 (or 162692194 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 4392689157 is about 66277.3653444372. The cubic root of 4392689157 is about 1637.7344730537.

The spelling of 4392689157 in words is "four billion, three hundred ninety-two million, six hundred eighty-nine thousand, one hundred fifty-seven".