61914154498559 has 4 divisors (see below), whose sum is σ = 67542713998440. Its totient is φ = 56285594998680.

The previous prime is 61914154498549. The next prime is 61914154498613. The reversal of 61914154498559 is 95589445141916.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61914154498559 - 2²⁰ = 61914153449983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61914154498492 and 61914154498501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61914154498549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2814279749924 + ... + 2814279749945.

It is an arithmetic number, because the mean of its divisors is an integer number (16885678499610).

Almost surely, 2^{61914154498559} is an apocalyptic number.

61914154498559 is a deficient number, since it is larger than the sum of its proper divisors (5628559499881).

61914154498559 is a wasteful number, since it uses less digits than its factorization.

61914154498559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5628559499880.

The product of its digits is 279936000, while the sum is 71.

The spelling of 61914154498559 in words is "sixty-one trillion, nine hundred fourteen billion, one hundred fifty-four million, four hundred ninety-eight thousand, five hundred fifty-nine".