18979014870 has 96 divisors (see below), whose sum is σ = 49836294144. Its totient is φ = 5010984000.

The previous prime is 18979014853. The next prime is 18979014871. The reversal of 18979014870 is 7841097981.

It is a super-2 number, since 2×18979014870² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18979014871) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3830895 + ... + 3835845.

It is an arithmetic number, because the mean of its divisors is an integer number (519128064).

Almost surely, 2^18979014870 is an apocalyptic number.

18979014870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18979014870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24918147072).

18979014870 is an abundant number, since it is smaller than the sum of its proper divisors (30857279274).

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

18979014870 is a wasteful number, since it uses less digits than its factorization.

18979014870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5378 (or 5375 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 54.

The spelling of 18979014870 in words is "eighteen billion, nine hundred seventy-nine million, fourteen thousand, eight hundred seventy".