3925212291 has 192 divisors, whose sum is σ = 8012856320. Its totient is φ = 1870672320.

The previous prime is 3925212259. The next prime is 3925212293. The reversal of 3925212291 is 1922125293.

It is not a de Polignac number, because 3925212291 - 2⁵ = 3925212259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3925212293) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 24080976 + ... + 24081138.

Almost surely, 2^3925212291 is an apocalyptic number.

3925212291 is an abundant number, since it is smaller than the sum of its proper divisors (4087644029).

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

3925212291 is a wasteful number, since it uses less digits than its factorization.

3925212291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 197 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 3925212291 is about 62651.5146744275. The cubic root of 3925212291 is about 1577.4455721152.

The spelling of 3925212291 in words is "three billion, nine hundred twenty-five million, two hundred twelve thousand, two hundred ninety-one".