88177678421 has 16 divisors (see below), whose sum is σ = 101791071360. Its totient is φ = 74818708800.

The previous prime is 88177678373. The next prime is 88177678423. The reversal of 88177678421 is 12487677188.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 88177678421 - 2²⁶ = 88110569557 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 (88177678423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6121790 + ... + 6136176.

It is an arithmetic number, because the mean of its divisors is an integer number (6361941960).

Almost surely, 2^88177678421 is an apocalyptic number.

It is an amenable number.

88177678421 is a deficient number, since it is larger than the sum of its proper divisors (13613392939).

88177678421 is a wasteful number, since it uses less digits than its factorization.

88177678421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23164.

The product of its digits is 8429568, while the sum is 59.

The spelling of 88177678421 in words is "eighty-eight billion, one hundred seventy-seven million, six hundred seventy-eight thousand, four hundred twenty-one".