40021037436737 has 4 divisors (see below), whose sum is σ = 45738328499136. Its totient is φ = 34303746374340.

The previous prime is 40021037436707. The next prime is 40021037436769. The reversal of 40021037436737 is 73763473012004.

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 40021037436737 - 2⁸ = 40021037436481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40021037436691 and 40021037436700.

It is not an unprimeable number, because it can be changed into a prime (40021037436707) 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, 2858645531189 + ... + 2858645531202.

It is an arithmetic number, because the mean of its divisors is an integer number (11434582124784).

Almost surely, 2^{40021037436737} is an apocalyptic number.

It is an amenable number.

40021037436737 is a deficient number, since it is larger than the sum of its proper divisors (5717291062399).

40021037436737 is an equidigital number, since it uses as much as digits as its factorization.

40021037436737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5717291062398.

The product of its (nonzero) digits is 1778112, while the sum is 47.

The spelling of 40021037436737 in words is "forty trillion, twenty-one billion, thirty-seven million, four hundred thirty-six thousand, seven hundred thirty-seven".