60891696989 has 12 divisors (see below), whose sum is σ = 61550946240. Its totient is φ = 60239430000.

The previous prime is 60891696967. The next prime is 60891697043. The reversal of 60891696989 is 98969619806.

It is a de Polignac number, because none of the positive numbers 2^k-60891696989 is a prime.

It is a super-2 number, since 2×60891696989² (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 (60891696919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23981282 + ... + 23983820.

It is an arithmetic number, because the mean of its divisors is an integer number (5129245520).

Almost surely, 2^60891696989 is an apocalyptic number.

It is an amenable number.

60891696989 is a deficient number, since it is larger than the sum of its proper divisors (659249251).

60891696989 is a wasteful number, since it uses less digits than its factorization.

60891696989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5092 (or 4991 counting only the distinct ones).

The product of its (nonzero) digits is 90699264, while the sum is 71.

The spelling of 60891696989 in words is "sixty billion, eight hundred ninety-one million, six hundred ninety-six thousand, nine hundred eighty-nine".