40687844902 has 8 divisors (see below), whose sum is σ = 61170793200. Its totient is φ = 20297580504.

The previous prime is 40687844887. The next prime is 40687844903. The reversal of 40687844902 is 20944878604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40687844902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40687844903) 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, 23169877 + ... + 23171632.

It is an arithmetic number, because the mean of its divisors is an integer number (7646349150).

Almost surely, 2^40687844902 is an apocalyptic number.

40687844902 is a deficient number, since it is larger than the sum of its proper divisors (20482948298).

40687844902 is a wasteful number, since it uses less digits than its factorization.

40687844902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46341950.

The product of its (nonzero) digits is 3096576, while the sum is 52.

The spelling of 40687844902 in words is "forty billion, six hundred eighty-seven million, eight hundred forty-four thousand, nine hundred two".