40844798878 has 64 divisors (see below), whose sum is σ = 68157573120. Its totient is φ = 18239899392.

The previous prime is 40844798801. The next prime is 40844798881. The reversal of 40844798878 is 87889744804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47548813 + ... + 47549671.

It is an arithmetic number, because the mean of its divisors is an integer number (1064962080).

Almost surely, 2^40844798878 is an apocalyptic number.

40844798878 is a deficient number, since it is larger than the sum of its proper divisors (27312774242).

40844798878 is a wasteful number, since it uses less digits than its factorization.

40844798878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321.

The product of its (nonzero) digits is 115605504, while the sum is 67.

The spelling of 40844798878 in words is "forty billion, eight hundred forty-four million, seven hundred ninety-eight thousand, eight hundred seventy-eight".