43394101875 has 60 divisors (see below), whose sum is σ = 79133862808. Its totient is φ = 22904640000.

The previous prime is 43394101871. The next prime is 43394101903. The reversal of 43394101875 is 57810149334.

It is not a de Polignac number, because 43394101875 - 2² = 43394101871 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43394101875.

It is not an unprimeable number, because it can be changed into a prime (43394101871) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 505860 + ... + 585390.

Almost surely, 2^43394101875 is an apocalyptic number.

43394101875 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

43394101875 is a deficient number, since it is larger than the sum of its proper divisors (35739760933).

43394101875 is an equidigital number, since it uses as much as digits as its factorization.

43394101875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79654 (or 79636 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 43394101875 in words is "forty-three billion, three hundred ninety-four million, one hundred one thousand, eight hundred seventy-five".