88381071405 has 64 divisors (see below), whose sum is σ = 174639939840. Its totient is φ = 42042873600.

The previous prime is 88381071391. The next prime is 88381071421. The reversal of 88381071405 is 50417018388.

It is a happy number.

It is not a de Polignac number, because 88381071405 - 2⁶ = 88381071341 is a prime.

It is a super-2 number, since 2×88381071405² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 482766 + ... + 640175.

It is an arithmetic number, because the mean of its divisors is an integer number (2728749060).

Almost surely, 2^88381071405 is an apocalyptic number.

It is an amenable number.

88381071405 is a deficient number, since it is larger than the sum of its proper divisors (86258868435).

88381071405 is a wasteful number, since it uses less digits than its factorization.

88381071405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123019 (or 1123013 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 88381071405 in words is "eighty-eight billion, three hundred eighty-one million, seventy-one thousand, four hundred five".