77954533629 has 32 divisors (see below), whose sum is σ = 125089735680. Its totient is φ = 42184115712.

The previous prime is 77954533607. The next prime is 77954533663. The reversal of 77954533629 is 92633545977.

It is not a de Polignac number, because 77954533629 - 2⁵ = 77954533597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77954533229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 996934 + ... + 1072280.

It is an arithmetic number, because the mean of its divisors is an integer number (3909054240).

Almost surely, 2^77954533629 is an apocalyptic number.

It is an amenable number.

77954533629 is a deficient number, since it is larger than the sum of its proper divisors (47135202051).

77954533629 is a wasteful number, since it uses less digits than its factorization.

77954533629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77969.

The product of its digits is 42865200, while the sum is 60.

The spelling of 77954533629 in words is "seventy-seven billion, nine hundred fifty-four million, five hundred thirty-three thousand, six hundred twenty-nine".