40501333997 has 4 divisors (see below), whose sum is σ = 40530285600. Its totient is φ = 40472382396.

The previous prime is 40501333993. The next prime is 40501334009. The reversal of 40501333997 is 79933310504.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40501333997 - 2² = 40501333993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40501333993) 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, 14473703 + ... + 14476500.

It is an arithmetic number, because the mean of its divisors is an integer number (10132571400).

Almost surely, 2^40501333997 is an apocalyptic number.

It is an amenable number.

40501333997 is a deficient number, since it is larger than the sum of its proper divisors (28951603).

40501333997 is a wasteful number, since it uses less digits than its factorization.

40501333997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28951602.

The product of its (nonzero) digits is 306180, while the sum is 44.

The spelling of 40501333997 in words is "forty billion, five hundred one million, three hundred thirty-three thousand, nine hundred ninety-seven".