88881312415 has 24 divisors (see below), whose sum is σ = 131369360112. Its totient is φ = 57362054400.

The previous prime is 88881312407. The next prime is 88881312433. The reversal of 88881312415 is 51421318888.

It is a happy number.

It is not a de Polignac number, because 88881312415 - 2³ = 88881312407 is a prime.

It is a super-2 number, since 2×88881312415² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10665861 + ... + 10674190.

It is an arithmetic number, because the mean of its divisors is an integer number (5473723338).

Almost surely, 2^88881312415 is an apocalyptic number.

88881312415 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

88881312415 is a deficient number, since it is larger than the sum of its proper divisors (42488047697).

88881312415 is a wasteful number, since it uses less digits than its factorization.

88881312415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21340087 (or 21340080 counting only the distinct ones).

The product of its digits is 491520, while the sum is 49.

The spelling of 88881312415 in words is "eighty-eight billion, eight hundred eighty-one million, three hundred twelve thousand, four hundred fifteen".