40293427815577 has 4 divisors (see below), whose sum is σ = 40293982428196. Its totient is φ = 40292873202960.

The previous prime is 40293427815533. The next prime is 40293427815601. The reversal of 40293427815577 is 77551872439204.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1560927895641 + 38732499919936 = 1249371^2 + 6223544^2 .

It is a cyclic number.

It is not a de Polignac number, because 40293427815577 - 2⁷ = 40293427815449 is a prime.

It is a super-2 number, since 2×40293427815577² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40293427812577) 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, 277197318 + ... + 277342639.

It is an arithmetic number, because the mean of its divisors is an integer number (10073495607049).

Almost surely, 2^{40293427815577} is an apocalyptic number.

It is an amenable number.

40293427815577 is a deficient number, since it is larger than the sum of its proper divisors (554612619).

40293427815577 is an equidigital number, since it uses as much as digits as its factorization.

40293427815577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554612618.

The product of its (nonzero) digits is 118540800, while the sum is 64.

The spelling of 40293427815577 in words is "forty trillion, two hundred ninety-three billion, four hundred twenty-seven million, eight hundred fifteen thousand, five hundred seventy-seven".