61913304112869 has 24 divisors (see below), whose sum is σ = 99636110301312. Its totient is φ = 36724848342720.

The previous prime is 61913304112817. The next prime is 61913304112883. The reversal of 61913304112869 is 96821140331916.

61913304112869 is a `hidden beast` number, since 6 + 1 + 91 + 330 + 41 + 128 + 69 = 666.

It is not a de Polignac number, because 61913304112869 - 2¹⁵ = 61913304080101 is a prime.

It is a super-2 number, since 2×61913304112869² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61913304112889) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6653047584 + ... + 6653056889.

It is an arithmetic number, because the mean of its divisors is an integer number (4151504595888).

Almost surely, 2^{61913304112869} is an apocalyptic number.

It is an amenable number.

61913304112869 is a deficient number, since it is larger than the sum of its proper divisors (37722806188443).

61913304112869 is a wasteful number, since it uses less digits than its factorization.

61913304112869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13306104537 (or 13306104534 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 61913304112869 in words is "sixty-one trillion, nine hundred thirteen billion, three hundred four million, one hundred twelve thousand, eight hundred sixty-nine".