18970358949216 has 120 divisors (see below), whose sum is σ = 55794362284584. Its totient is φ = 6323105756160.

The previous prime is 18970358949127. The next prime is 18970358949257. The reversal of 18970358949216 is 61294985307981.

18970358949216 is a `hidden beast` number, since 1 + 8 + 9 + 70 + 3 + 58 + 9 + 492 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 49370251 + ... + 49753013.

It is a 1-persistent number, because it is pandigital, but 2⋅18970358949216 = 37940717898432 is not.

Almost surely, 2^{18970358949216} is an apocalyptic number.

18970358949216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18970358949216 is an abundant number, since it is smaller than the sum of its proper divisors (36824003335368).

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

18970358949216 is a wasteful number, since it uses less digits than its factorization.

18970358949216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401906 (or 401889 counting only the distinct ones).

The product of its (nonzero) digits is 235146240, while the sum is 72.

The spelling of 18970358949216 in words is "eighteen trillion, nine hundred seventy billion, three hundred fifty-eight million, nine hundred forty-nine thousand, two hundred sixteen".