40418394979072 has 72 divisors (see below), whose sum is σ = 88074951204240. Its totient is φ = 18359139348480.

The previous prime is 40418394979057. The next prime is 40418394979087. The reversal of 40418394979072 is 27097949381404.

It is an interprime number because it is at equal distance from previous prime (40418394979057) and next prime (40418394979087).

It is a junction number, because it is equal to n+sod(n) for n = 40418394978989 and 40418394979007.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 998023 + ... + 9046150.

It is an arithmetic number, because the mean of its divisors is an integer number (1223263211170).

Almost surely, 2^{40418394979072} is an apocalyptic number.

It is an amenable number.

40418394979072 is an abundant number, since it is smaller than the sum of its proper divisors (47656556225168).

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

40418394979072 is a wasteful number, since it uses less digits than its factorization.

40418394979072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10045629 (or 10045615 counting only the distinct ones).

The product of its (nonzero) digits is 109734912, while the sum is 67.

The spelling of 40418394979072 in words is "forty trillion, four hundred eighteen billion, three hundred ninety-four million, nine hundred seventy-nine thousand, seventy-two".