146987657509 has 48 divisors (see below), whose sum is σ = 191069068288. Its totient is φ = 110569536000.

The previous prime is 146987657501. The next prime is 146987657533. The reversal of 146987657509 is 905756789641.

It is not a de Polignac number, because 146987657509 - 2³ = 146987657501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146987657501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11047549 + ... + 11060845.

Almost surely, 2^146987657509 is an apocalyptic number.

It is an amenable number.

146987657509 is a deficient number, since it is larger than the sum of its proper divisors (44081410779).

146987657509 is a wasteful number, since it uses less digits than its factorization.

146987657509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13778 (or 13767 counting only the distinct ones).

The product of its (nonzero) digits is 114307200, while the sum is 67.

The spelling of 146987657509 in words is "one hundred forty-six billion, nine hundred eighty-seven million, six hundred fifty-seven thousand, five hundred nine".