1642125252464 has 10 divisors (see below), whose sum is σ = 3181617676680. Its totient is φ = 821062626224.

The previous prime is 1642125252451. The next prime is 1642125252491. The reversal of 1642125252464 is 4642525212461.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51316414124 + ... + 51316414155.

It is an arithmetic number, because the mean of its divisors is an integer number (318161767668).

Almost surely, 2^{1642125252464} is an apocalyptic number.

It is an amenable number.

1642125252464 is a deficient number, since it is larger than the sum of its proper divisors (1539492424216).

1642125252464 is a wasteful number, since it uses less digits than its factorization.

1642125252464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102632828287 (or 102632828281 counting only the distinct ones).

The product of its digits is 921600, while the sum is 44.

The spelling of 1642125252464 in words is "one trillion, six hundred forty-two billion, one hundred twenty-five million, two hundred fifty-two thousand, four hundred sixty-four".