18978483070 has 32 divisors (see below), whose sum is σ = 35978774400. Its totient is φ = 7187937696.

The previous prime is 18978483067. The next prime is 18978483101. The reversal of 18978483070 is 7038487981.

It is a happy number.

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, 336141 + ... + 388519.

It is an arithmetic number, because the mean of its divisors is an integer number (1124336700).

Almost surely, 2^18978483070 is an apocalyptic number.

18978483070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18978483070 is a deficient number, since it is larger than the sum of its proper divisors (17000291330).

18978483070 is a wasteful number, since it uses less digits than its factorization.

18978483070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54312.

The product of its (nonzero) digits is 2709504, while the sum is 55.

The spelling of 18978483070 in words is "eighteen billion, nine hundred seventy-eight million, four hundred eighty-three thousand, seventy".