11581647079380 has 48 divisors (see below), whose sum is σ = 37061270655360. Its totient is φ = 2647233618048.

The previous prime is 11581647079367. The next prime is 11581647079423. The reversal of 11581647079380 is 8397074618511.

It is a super-2 number, since 2×11581647079380² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13787674675 + ... + 13787675514.

It is an arithmetic number, because the mean of its divisors is an integer number (772109805320).

Almost surely, 2^{11581647079380} is an apocalyptic number.

11581647079380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11581647079380 is an abundant number, since it is smaller than the sum of its proper divisors (25479623575980).

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

11581647079380 is a wasteful number, since it uses less digits than its factorization.

11581647079380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27575350208 (or 27575350206 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 60.

The spelling of 11581647079380 in words is "eleven trillion, five hundred eighty-one billion, six hundred forty-seven million, seventy-nine thousand, three hundred eighty".