2193915672 has 64 divisors (see below), whose sum is σ = 6563004000. Its totient is φ = 675050112.

The previous prime is 2193915653. The next prime is 2193915721. The reversal of 2193915672 is 2765193912.

It is a happy number.

It is a super-3 number, since 3×2193915672³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387847 + ... + 393462.

Almost surely, 2^2193915672 is an apocalyptic number.

It is an amenable number.

2193915672 is an abundant number, since it is smaller than the sum of its proper divisors (4369088328).

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

2193915672 is a wasteful number, since it uses less digits than its factorization.

2193915672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781337 (or 781327 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 2193915672 is about 46839.2535380315. The cubic root of 2193915672 is about 1299.3913663766.

The spelling of 2193915672 in words is "two billion, one hundred ninety-three million, nine hundred fifteen thousand, six hundred seventy-two".