27001413990 has 192 divisors, whose sum is σ = 78732186624. Its totient is φ = 6632160768.

The previous prime is 27001413979. The next prime is 27001414009. The reversal of 27001413990 is 9931410072.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1934617 + ... + 1948523.

It is an arithmetic number, because the mean of its divisors is an integer number (410063472).

Almost surely, 2^27001413990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27001413990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39366093312).

27001413990 is an abundant number, since it is smaller than the sum of its proper divisors (51730772634).

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

27001413990 is a wasteful number, since it uses less digits than its factorization.

27001413990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13993 (or 13981 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The spelling of 27001413990 in words is "twenty-seven billion, one million, four hundred thirteen thousand, nine hundred ninety".