40261889847 has 32 divisors (see below), whose sum is σ = 55054847232. Its totient is φ = 26162383104.

The previous prime is 40261889821. The next prime is 40261889869. The reversal of 40261889847 is 74898816204.

It is not a de Polignac number, because 40261889847 - 2²⁴ = 40245112631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40261889807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16936923 + ... + 16939299.

It is an arithmetic number, because the mean of its divisors is an integer number (1720463976).

Almost surely, 2^40261889847 is an apocalyptic number.

40261889847 is a deficient number, since it is larger than the sum of its proper divisors (14792957385).

40261889847 is a wasteful number, since it uses less digits than its factorization.

40261889847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3087.

The product of its (nonzero) digits is 6193152, while the sum is 57.

The spelling of 40261889847 in words is "forty billion, two hundred sixty-one million, eight hundred eighty-nine thousand, eight hundred forty-seven".