77142232323 has 24 divisors (see below), whose sum is σ = 125216381472. Its totient is φ = 45408135168.

The previous prime is 77142232319. The next prime is 77142232373. The reversal of 77142232323 is 32323224177.

It is not a de Polignac number, because 77142232323 - 2² = 77142232319 is a prime.

77142232323 is a modest number, since divided by 232323 gives 77142 as remainder.

It is not an unprimeable number, because it can be changed into a prime (77142232313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14330686 + ... + 14336067.

It is an arithmetic number, because the mean of its divisors is an integer number (5217349228).

Almost surely, 2^77142232323 is an apocalyptic number.

77142232323 is a deficient number, since it is larger than the sum of its proper divisors (48074149149).

77142232323 is a wasteful number, since it uses less digits than its factorization.

77142232323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28666795 (or 28666792 counting only the distinct ones).

The product of its digits is 84672, while the sum is 36.

The spelling of 77142232323 in words is "seventy-seven billion, one hundred forty-two million, two hundred thirty-two thousand, three hundred twenty-three".