40078129110 has 64 divisors (see below), whose sum is σ = 99002234880. Its totient is φ = 10379191680.

The previous prime is 40078129109. The next prime is 40078129129. The reversal of 40078129110 is 1192187004.

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, 5959 + ... + 283181.

It is an arithmetic number, because the mean of its divisors is an integer number (1546909920).

Almost surely, 2^40078129110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40078129110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49501117440).

40078129110 is an abundant number, since it is smaller than the sum of its proper divisors (58924105770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40078129110 is a wasteful number, since it uses less digits than its factorization.

40078129110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277373.

The product of its (nonzero) digits is 4032, while the sum is 33.

The spelling of 40078129110 in words is "forty billion, seventy-eight million, one hundred twenty-nine thousand, one hundred ten".