1249658500464 has 120 divisors (see below), whose sum is σ = 3815704105200. Its totient is φ = 378638853120.

The previous prime is 1249658500457. The next prime is 1249658500481. The reversal of 1249658500464 is 4640058569421.

It is a happy number.

1249658500464 is a `hidden beast` number, since 1 + 2 + 4 + 96 + 5 + 8 + 500 + 46 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1249658500464.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14544222 + ... + 14629890.

It is an arithmetic number, because the mean of its divisors is an integer number (31797534210).

Almost surely, 2^{1249658500464} is an apocalyptic number.

It is an amenable number.

1249658500464 is an abundant number, since it is smaller than the sum of its proper divisors (2566045604736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1249658500464 is a wasteful number, since it uses less digits than its factorization.

1249658500464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94903 (or 94894 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

The spelling of 1249658500464 in words is "one trillion, two hundred forty-nine billion, six hundred fifty-eight million, five hundred thousand, four hundred sixty-four".