60725142821 has 6 divisors (see below), whose sum is σ = 70639451910. Its totient is φ = 52050122376.

The previous prime is 60725142817. The next prime is 60725142851. The reversal of 60725142821 is 12824152706.

It can be written as a sum of positive squares in only one way, i.e., 51089560900 + 9635581921 = 226030^2 + 98161^2 .

It is not a de Polignac number, because 60725142821 - 2² = 60725142817 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60725142851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 619644266 + ... + 619644363.

It is an arithmetic number, because the mean of its divisors is an integer number (11773241985).

Almost surely, 2^60725142821 is an apocalyptic number.

It is an amenable number.

60725142821 is a deficient number, since it is larger than the sum of its proper divisors (9914309089).

60725142821 is a wasteful number, since it uses less digits than its factorization.

60725142821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239288643 (or 1239288636 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The spelling of 60725142821 in words is "sixty billion, seven hundred twenty-five million, one hundred forty-two thousand, eight hundred twenty-one".