40729190992641 has 16 divisors (see below), whose sum is σ = 63888927048000. Its totient is φ = 25555570818624.

The previous prime is 40729190992561. The next prime is 40729190992649. The reversal of 40729190992641 is 14629909192704.

It is not a de Polignac number, because 40729190992641 - 2²⁵ = 40729157438209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40729190992649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44367309991 + ... + 44367310908.

It is an arithmetic number, because the mean of its divisors is an integer number (3993057940500).

Almost surely, 2^{40729190992641} is an apocalyptic number.

It is an amenable number.

40729190992641 is a deficient number, since it is larger than the sum of its proper divisors (23159736055359).

40729190992641 is a wasteful number, since it uses less digits than its factorization.

40729190992641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88734620925 (or 88734620919 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 63.

The spelling of 40729190992641 in words is "forty trillion, seven hundred twenty-nine billion, one hundred ninety million, nine hundred ninety-two thousand, six hundred forty-one".