60640046421 has 4 divisors (see below), whose sum is σ = 80853395232. Its totient is φ = 40426697612.

The previous prime is 60640046393. The next prime is 60640046459. The reversal of 60640046421 is 12464004606.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 60640046421 - 2⁷ = 60640046293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60640046471) 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, 10106674401 + ... + 10106674406.

It is an arithmetic number, because the mean of its divisors is an integer number (20213348808).

Almost surely, 2^60640046421 is an apocalyptic number.

It is an amenable number.

60640046421 is a deficient number, since it is larger than the sum of its proper divisors (20213348811).

60640046421 is a wasteful number, since it uses less digits than its factorization.

60640046421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20213348810.

The product of its (nonzero) digits is 27648, while the sum is 33.

The spelling of 60640046421 in words is "sixty billion, six hundred forty million, forty-six thousand, four hundred twenty-one".