40693497271949 has 4 divisors (see below), whose sum is σ = 40906552231680. Its totient is φ = 40480442312220.

The previous prime is 40693497271919. The next prime is 40693497271961. The reversal of 40693497271949 is 94917279439604.

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 40693497271949 - 2²⁸ = 40693228836493 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 (40693497271919) 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, 106527479579 + ... + 106527479960.

It is an arithmetic number, because the mean of its divisors is an integer number (10226638057920).

Almost surely, 2^{40693497271949} is an apocalyptic number.

It is an amenable number.

40693497271949 is a deficient number, since it is larger than the sum of its proper divisors (213054959731).

40693497271949 is a wasteful number, since it uses less digits than its factorization.

40693497271949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213054959730.

The product of its (nonzero) digits is 740710656, while the sum is 74.

The spelling of 40693497271949 in words is "forty trillion, six hundred ninety-three billion, four hundred ninety-seven million, two hundred seventy-one thousand, nine hundred forty-nine".