60913881531 has 12 divisors (see below), whose sum is σ = 87990533280. Its totient is φ = 40607493360.

The previous prime is 60913881529. The next prime is 60913881533. The reversal of 60913881531 is 13518831906.

It is a happy number.

60913881531 is a `hidden beast` number, since 6 + 0 + 9 + 1 + 38 + 81 + 531 = 666.

It is an interprime number because it is at equal distance from previous prime (60913881529) and next prime (60913881533).

It is not a de Polignac number, because 60913881531 - 2¹ = 60913881529 is a prime.

It is a super-2 number, since 2×60913881531² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (60913881533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92926 + ... + 361196.

It is an arithmetic number, because the mean of its divisors is an integer number (7332544440).

Almost surely, 2^60913881531 is an apocalyptic number.

60913881531 is a deficient number, since it is larger than the sum of its proper divisors (27076651749).

60913881531 is a wasteful number, since it uses less digits than its factorization.

60913881531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293506 (or 293503 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 60913881531 in words is "sixty billion, nine hundred thirteen million, eight hundred eighty-one thousand, five hundred thirty-one".