40142177365747 has 4 divisors (see below), whose sum is σ = 40150756591920. Its totient is φ = 40133598139576.

The previous prime is 40142177365721. The next prime is 40142177365753. The reversal of 40142177365747 is 74756377124104.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40142177365747 is a prime.

It is a super-2 number, since 2×40142177365747² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40142177365691 and 40142177365700.

It is not an unprimeable number, because it can be changed into a prime (40142177368747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4289606068 + ... + 4289615425.

It is an arithmetic number, because the mean of its divisors is an integer number (10037689147980).

Almost surely, 2^{40142177365747} is an apocalyptic number.

40142177365747 is a deficient number, since it is larger than the sum of its proper divisors (8579226173).

40142177365747 is an equidigital number, since it uses as much as digits as its factorization.

40142177365747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8579226172.

The product of its (nonzero) digits is 27659520, while the sum is 58.

The spelling of 40142177365747 in words is "forty trillion, one hundred forty-two billion, one hundred seventy-seven million, three hundred sixty-five thousand, seven hundred forty-seven".