651971912241 has 16 divisors (see below), whose sum is σ = 961466550464. Its totient is φ = 390369875904.

The previous prime is 651971912227. The next prime is 651971912257. The reversal of 651971912241 is 142219179156.

651971912241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 651971912241 - 2⁵ = 651971912209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (651971912281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225907051 + ... + 225909936.

It is an arithmetic number, because the mean of its divisors is an integer number (60091659404).

Almost surely, 2^651971912241 is an apocalyptic number.

It is an amenable number.

651971912241 is a deficient number, since it is larger than the sum of its proper divisors (309494638223).

651971912241 is a wasteful number, since it uses less digits than its factorization.

651971912241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451817040.

The product of its digits is 272160, while the sum is 48.

The spelling of 651971912241 in words is "six hundred fifty-one billion, nine hundred seventy-one million, nine hundred twelve thousand, two hundred forty-one".