40023978898 has 8 divisors (see below), whose sum is σ = 60305188608. Its totient is φ = 19922249364.

The previous prime is 40023978877. The next prime is 40023978941. The reversal of 40023978898 is 89887932004.

40023978898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44869486 + ... + 44870377.

It is an arithmetic number, because the mean of its divisors is an integer number (7538148576).

Almost surely, 2^40023978898 is an apocalyptic number.

40023978898 is a deficient number, since it is larger than the sum of its proper divisors (20281209710).

40023978898 is a wasteful number, since it uses less digits than its factorization.

40023978898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89740088.

The product of its (nonzero) digits is 6967296, while the sum is 58.

The spelling of 40023978898 in words is "forty billion, twenty-three million, nine hundred seventy-eight thousand, eight hundred ninety-eight".