88221415472638 has 24 divisors (see below), whose sum is σ = 153985041754200. Its totient is φ = 37797468671088.

The previous prime is 88221415472609. The next prime is 88221415472639. The reversal of 88221415472638 is 83627451412288.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88221415472639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139079428 + ... + 139712311.

It is an arithmetic number, because the mean of its divisors is an integer number (6416043406425).

Almost surely, 2^{88221415472638} is an apocalyptic number.

88221415472638 is a deficient number, since it is larger than the sum of its proper divisors (65763626281562).

88221415472638 is a wasteful number, since it uses less digits than its factorization.

88221415472638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278794984 (or 278794977 counting only the distinct ones).

The product of its digits is 41287680, while the sum is 61.

The spelling of 88221415472638 in words is "eighty-eight trillion, two hundred twenty-one billion, four hundred fifteen million, four hundred seventy-two thousand, six hundred thirty-eight".