16986371490 has 80 divisors (see below), whose sum is σ = 49826715840. Its totient is φ = 4117906080.

The previous prime is 16986371489. The next prime is 16986371509. The reversal of 16986371490 is 9417368961.

16986371490 is a `hidden beast` number, since 1 + 6 + 9 + 86 + 3 + 71 + 490 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 944310 + ... + 962129.

It is an arithmetic number, because the mean of its divisors is an integer number (622833948).

Almost surely, 2^16986371490 is an apocalyptic number.

16986371490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16986371490 is an abundant number, since it is smaller than the sum of its proper divisors (32840344350).

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

16986371490 is a wasteful number, since it uses less digits than its factorization.

16986371490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906469 (or 1906460 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 16986371490 in words is "sixteen billion, nine hundred eighty-six million, three hundred seventy-one thousand, four hundred ninety".