1654653425844 has 12 divisors (see below), whose sum is σ = 3860857993664. Its totient is φ = 551551141944.

The previous prime is 1654653425839. The next prime is 1654653425851. The reversal of 1654653425844 is 4485243564561.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1654653425844² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68943892732 + ... + 68943892755.

Almost surely, 2^{1654653425844} is an apocalyptic number.

It is an amenable number.

1654653425844 is an abundant number, since it is smaller than the sum of its proper divisors (2206204567820).

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

1654653425844 is a wasteful number, since it uses less digits than its factorization.

1654653425844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137887785494 (or 137887785492 counting only the distinct ones).

The product of its digits is 55296000, while the sum is 57.

The spelling of 1654653425844 in words is "one trillion, six hundred fifty-four billion, six hundred fifty-three million, four hundred twenty-five thousand, eight hundred forty-four".