40464397380571 has 4 divisors (see below), whose sum is σ = 40464412217944. Its totient is φ = 40464382543200.

The previous prime is 40464397380559. The next prime is 40464397380577. The reversal of 40464397380571 is 17508379346404.

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

It is a cyclic number.

It is not a de Polignac number, because 40464397380571 - 2¹⁷ = 40464397249499 is a prime.

It is a super-2 number, since 2×40464397380571² (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 (40464397380577) 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, 2016750 + ... + 9219331.

It is an arithmetic number, because the mean of its divisors is an integer number (10116103054486).

Almost surely, 2^{40464397380571} is an apocalyptic number.

40464397380571 is a deficient number, since it is larger than the sum of its proper divisors (14837373).

40464397380571 is a wasteful number, since it uses less digits than its factorization.

40464397380571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14837372.

The product of its (nonzero) digits is 60963840, while the sum is 61.

The spelling of 40464397380571 in words is "forty trillion, four hundred sixty-four billion, three hundred ninety-seven million, three hundred eighty thousand, five hundred seventy-one".