60921814559 has 4 divisors (see below), whose sum is σ = 61053395616. Its totient is φ = 60790233504.

The previous prime is 60921814553. The next prime is 60921814589. The reversal of 60921814559 is 95541812906.

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 60921814559 - 2²⁴ = 60905037343 is a prime.

It is a super-2 number, since 2×60921814559² (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 (60921814553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65789834 + ... + 65790759.

It is an arithmetic number, because the mean of its divisors is an integer number (15263348904).

Almost surely, 2^60921814559 is an apocalyptic number.

60921814559 is a deficient number, since it is larger than the sum of its proper divisors (131581057).

60921814559 is a wasteful number, since it uses less digits than its factorization.

60921814559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131581056.

The product of its (nonzero) digits is 777600, while the sum is 50.

The spelling of 60921814559 in words is "sixty billion, nine hundred twenty-one million, eight hundred fourteen thousand, five hundred fifty-nine".