18870034963958 has 4 divisors (see below), whose sum is σ = 28305052445940. Its totient is φ = 9435017481978.

The previous prime is 18870034963943. The next prime is 18870034963981. The reversal of 18870034963958 is 85936943007881.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 18870034963891 and 18870034963900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4717508740988 + ... + 4717508740991.

It is an arithmetic number, because the mean of its divisors is an integer number (7076263111485).

Almost surely, 2^{18870034963958} is an apocalyptic number.

18870034963958 is a deficient number, since it is larger than the sum of its proper divisors (9435017481982).

18870034963958 is an equidigital number, since it uses as much as digits as its factorization.

18870034963958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9435017481981.

The product of its (nonzero) digits is 313528320, while the sum is 71.

The spelling of 18870034963958 in words is "eighteen trillion, eight hundred seventy billion, thirty-four million, nine hundred sixty-three thousand, nine hundred fifty-eight".