60990538909 has 4 divisors (see below), whose sum is σ = 62957975680. Its totient is φ = 59023102140.

The previous prime is 60990538883. The next prime is 60990538913. The reversal of 60990538909 is 90983509906.

60990538909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 60990538909 - 2¹³ = 60990530717 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 (60990538309) 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, 983718339 + ... + 983718400.

It is an arithmetic number, because the mean of its divisors is an integer number (15739493920).

Almost surely, 2^60990538909 is an apocalyptic number.

It is an amenable number.

60990538909 is a deficient number, since it is larger than the sum of its proper divisors (1967436771).

60990538909 is a wasteful number, since it uses less digits than its factorization.

60990538909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967436770.

The product of its (nonzero) digits is 4723920, while the sum is 58.

The spelling of 60990538909 in words is "sixty billion, nine hundred ninety million, five hundred thirty-eight thousand, nine hundred nine".