7071891672 has 32 divisors (see below), whose sum is σ = 17792348400. Its totient is φ = 2342281344.

The previous prime is 7071891661. The next prime is 7071891703. The reversal of 7071891672 is 2761981707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 934647 + ... + 942182.

Almost surely, 2^7071891672 is an apocalyptic number.

It is an amenable number.

7071891672 is an abundant number, since it is smaller than the sum of its proper divisors (10720456728).

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

7071891672 is a wasteful number, since it uses less digits than its factorization.

7071891672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876995 (or 1876991 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 48.

The square root of 7071891672 is about 84094.5400843598. The cubic root of 7071891672 is about 1919.4576441204.

The spelling of 7071891672 in words is "seven billion, seventy-one million, eight hundred ninety-one thousand, six hundred seventy-two".