4013978501712 has 20 divisors (see below), whose sum is σ = 10369444462880. Its totient is φ = 1337992833888.

The previous prime is 4013978501681. The next prime is 4013978501713. The reversal of 4013978501712 is 2171058793104.

It is a super-2 number, since 2×4013978501712² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 83624552119 = 4013978501712 / (4 + 0 + 1 + 3 + 9 + 7 + 8 + 5 + 0 + 1 + 7 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4013978501713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41812276012 + ... + 41812276107.

It is an arithmetic number, because the mean of its divisors is an integer number (518472223144).

Almost surely, 2^{4013978501712} is an apocalyptic number.

It is an amenable number.

4013978501712 is an abundant number, since it is smaller than the sum of its proper divisors (6355465961168).

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

4013978501712 is a wasteful number, since it uses less digits than its factorization.

4013978501712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83624552130 (or 83624552124 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 48.

The spelling of 4013978501712 in words is "four trillion, thirteen billion, nine hundred seventy-eight million, five hundred one thousand, seven hundred twelve".