61864808119 has 8 divisors (see below), whose sum is σ = 64027047168. Its totient is φ = 59733680640.

The previous prime is 61864808099. The next prime is 61864808177. The reversal of 61864808119 is 91180846816.

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

It is not a de Polignac number, because 61864808119 - 2²⁷ = 61730590391 is a prime.

It is a super-2 number, since 2×61864808119² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61864808419) 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, 7773847 + ... + 7781800.

It is an arithmetic number, because the mean of its divisors is an integer number (8003380896).

Almost surely, 2^61864808119 is an apocalyptic number.

61864808119 is a deficient number, since it is larger than the sum of its proper divisors (2162239049).

61864808119 is a wasteful number, since it uses less digits than its factorization.

61864808119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15555785.

The product of its (nonzero) digits is 663552, while the sum is 52.

The spelling of 61864808119 in words is "sixty-one billion, eight hundred sixty-four million, eight hundred eight thousand, one hundred nineteen".