76824631157 has 4 divisors (see below), whose sum is σ = 76828101120. Its totient is φ = 76821161196.

The previous prime is 76824631153. The next prime is 76824631223. The reversal of 76824631157 is 75113642867.

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 76824631157 - 2² = 76824631153 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 (76824631153) 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, 1701557 + ... + 1746122.

It is an arithmetic number, because the mean of its divisors is an integer number (19207025280).

Almost surely, 2^76824631157 is an apocalyptic number.

It is an amenable number.

76824631157 is a deficient number, since it is larger than the sum of its proper divisors (3469963).

76824631157 is a wasteful number, since it uses less digits than its factorization.

76824631157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3469962.

The product of its digits is 1693440, while the sum is 50.

The spelling of 76824631157 in words is "seventy-six billion, eight hundred twenty-four million, six hundred thirty-one thousand, one hundred fifty-seven".