30697726098 has 64 divisors (see below), whose sum is σ = 70054612992. Its totient is φ = 8883855360.

The previous prime is 30697726093. The next prime is 30697726117. The reversal of 30697726098 is 89062779603.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30697726093) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2198178 + ... + 2212098.

It is an arithmetic number, because the mean of its divisors is an integer number (1094603328).

Almost surely, 2^30697726098 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30697726098, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35027306496).

30697726098 is an abundant number, since it is smaller than the sum of its proper divisors (39356886894).

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

30697726098 is a wasteful number, since it uses less digits than its factorization.

30697726098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15619.

The product of its (nonzero) digits is 6858432, while the sum is 57.

The spelling of 30697726098 in words is "thirty billion, six hundred ninety-seven million, seven hundred twenty-six thousand, ninety-eight".