113198691949 has 16 divisors (see below), whose sum is σ = 131261034240. Its totient is φ = 95611536000.

The previous prime is 113198691887. The next prime is 113198691953. The reversal of 113198691949 is 949196891311.

It is a cyclic number.

It is not a de Polignac number, because 113198691949 - 2²³ = 113190303341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113198691349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 466824 + ... + 666574.

It is an arithmetic number, because the mean of its divisors is an integer number (8203814640).

Almost surely, 2^113198691949 is an apocalyptic number.

It is an amenable number.

113198691949 is a deficient number, since it is larger than the sum of its proper divisors (18062342291).

113198691949 is a wasteful number, since it uses less digits than its factorization.

113198691949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200940.

The product of its digits is 3779136, while the sum is 61.

The spelling of 113198691949 in words is "one hundred thirteen billion, one hundred ninety-eight million, six hundred ninety-one thousand, nine hundred forty-nine".