61139453113 has 8 divisors (see below), whose sum is σ = 63117428480. Its totient is φ = 59161836240.

The previous prime is 61139453099. The next prime is 61139453201. The reversal of 61139453113 is 31135493116.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61139453113 - 2²⁵ = 61105898681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61139403113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281431 + ... + 448867.

It is an arithmetic number, because the mean of its divisors is an integer number (7889678560).

Almost surely, 2^61139453113 is an apocalyptic number.

It is an amenable number.

61139453113 is a deficient number, since it is larger than the sum of its proper divisors (1977975367).

61139453113 is a wasteful number, since it uses less digits than its factorization.

61139453113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179247.

The product of its digits is 29160, while the sum is 37.

The spelling of 61139453113 in words is "sixty-one billion, one hundred thirty-nine million, four hundred fifty-three thousand, one hundred thirteen".