77732428797 has 48 divisors (see below), whose sum is σ = 119613312000. Its totient is φ = 48506325120.

The previous prime is 77732428783. The next prime is 77732428801. The reversal of 77732428797 is 79782423777.

77732428797 is a `hidden beast` number, since 77 + 73 + 2 + 428 + 79 + 7 = 666.

It is not a de Polignac number, because 77732428797 - 2¹¹ = 77732426749 is a prime.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77732428757) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4858503 + ... + 4874475.

It is an arithmetic number, because the mean of its divisors is an integer number (2491944000).

Almost surely, 2^77732428797 is an apocalyptic number.

It is an amenable number.

77732428797 is a deficient number, since it is larger than the sum of its proper divisors (41880883203).

77732428797 is a wasteful number, since it uses less digits than its factorization.

77732428797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16338 (or 16335 counting only the distinct ones).

The product of its digits is 58084992, while the sum is 63.

The spelling of 77732428797 in words is "seventy-seven billion, seven hundred thirty-two million, four hundred twenty-eight thousand, seven hundred ninety-seven".