981948849190 has 16 divisors (see below), whose sum is σ = 1780223815440. Its totient is φ = 389953787040.

The previous prime is 981948849179. The next prime is 981948849317. The reversal of 981948849190 is 91948849189.

It is a super-2 number, since 2×981948849190² (a number of 25 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 7 ways as a sum of consecutive naturals, for example, 353217621 + ... + 353220400.

It is an arithmetic number, because the mean of its divisors is an integer number (111263988465).

Almost surely, 2^981948849190 is an apocalyptic number.

981948849190 is a deficient number, since it is larger than the sum of its proper divisors (798274966250).

981948849190 is a wasteful number, since it uses less digits than its factorization.

981948849190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706438167.

The product of its (nonzero) digits is 53747712, while the sum is 70.

The spelling of 981948849190 in words is "nine hundred eighty-one billion, nine hundred forty-eight million, eight hundred forty-nine thousand, one hundred ninety".