651974907133 has 12 divisors (see below), whose sum is σ = 717189708060. Its totient is φ = 592244502080.

The previous prime is 651974907131. The next prime is 651974907163. The reversal of 651974907133 is 331709479156.

It can be written as a sum of positive squares in 2 ways, for example, as 264645426969 + 387329480164 = 514437^2 + 622358^2 .

It is not a de Polignac number, because 651974907133 - 2¹ = 651974907131 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651974907131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1934110 + ... + 2246047.

It is an arithmetic number, because the mean of its divisors is an integer number (59765809005).

Almost surely, 2^651974907133 is an apocalyptic number.

It is an amenable number.

651974907133 is a deficient number, since it is larger than the sum of its proper divisors (65214800927).

651974907133 is a wasteful number, since it uses less digits than its factorization.

651974907133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4181468 (or 4181457 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 55.

The spelling of 651974907133 in words is "six hundred fifty-one billion, nine hundred seventy-four million, nine hundred seven thousand, one hundred thirty-three".