40004269497644 has 6 divisors (see below), whose sum is σ = 70007471620884. Its totient is φ = 20002134748820.

The previous prime is 40004269497641. The next prime is 40004269497701. The reversal of 40004269497644 is 44679496240004.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40004269497641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000533687202 + ... + 5000533687209.

It is an arithmetic number, because the mean of its divisors is an integer number (11667911936814).

Almost surely, 2^{40004269497644} is an apocalyptic number.

It is an amenable number.

40004269497644 is a deficient number, since it is larger than the sum of its proper divisors (30003202123240).

40004269497644 is a wasteful number, since it uses less digits than its factorization.

40004269497644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10001067374415 (or 10001067374413 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 59.

The spelling of 40004269497644 in words is "forty trillion, four billion, two hundred sixty-nine million, four hundred ninety-seven thousand, six hundred forty-four".