208981046190 has 384 divisors, whose sum is σ = 615047634432. Its totient is φ = 45269038080.

The previous prime is 208981046179. The next prime is 208981046243. The reversal of 208981046190 is 91640189802.

It is a super-2 number, since 2×208981046190² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 320031904 + ... + 320032556.

It is an arithmetic number, because the mean of its divisors is an integer number (1601686548).

Almost surely, 2^208981046190 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208981046190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307523817216).

208981046190 is an abundant number, since it is smaller than the sum of its proper divisors (406066588242).

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

208981046190 is a wasteful number, since it uses less digits than its factorization.

208981046190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864 (or 857 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 48.

The spelling of 208981046190 in words is "two hundred eight billion, nine hundred eighty-one million, forty-six thousand, one hundred ninety".