40993139880 has 768 divisors, whose sum is σ = 175999219200. Its totient is φ = 8302694400.

The previous prime is 40993139851. The next prime is 40993139897. The reversal of 40993139880 is 8893139904.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 37504614 + ... + 37505706.

It is an arithmetic number, because the mean of its divisors is an integer number (229165650).

Almost surely, 2^40993139880 is an apocalyptic number.

40993139880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40993139880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87999609600).

40993139880 is an abundant number, since it is smaller than the sum of its proper divisors (135006079320).

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

40993139880 is a wasteful number, since it uses less digits than its factorization.

40993139880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183 (or 1162 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 40993139880 in words is "forty billion, nine hundred ninety-three million, one hundred thirty-nine thousand, eight hundred eighty".