40192765081 has 24 divisors (see below), whose sum is σ = 47115043584. Its totient is φ = 33587265600.

The previous prime is 40192765009. The next prime is 40192765087. The reversal of 40192765081 is 18056729104.

It is not a de Polignac number, because 40192765081 - 2³³ = 31602830489 is a prime.

It is a super-2 number, since 2×40192765081² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (40192765087) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7776160 + ... + 7781326.

It is an arithmetic number, because the mean of its divisors is an integer number (1963126816).

Almost surely, 2^40192765081 is an apocalyptic number.

It is an amenable number.

40192765081 is a deficient number, since it is larger than the sum of its proper divisors (6922278503).

40192765081 is an equidigital number, since it uses as much as digits as its factorization.

40192765081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5861 (or 5818 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 40192765081 in words is "forty billion, one hundred ninety-two million, seven hundred sixty-five thousand, eighty-one".