651285263853 has 72 divisors (see below), whose sum is σ = 1137792932640. Its totient is φ = 371203650720.

The previous prime is 651285263851. The next prime is 651285263879. The reversal of 651285263853 is 358362582156.

It is a happy number.

651285263853 is a `hidden beast` number, since 6 + 51 + 285 + 263 + 8 + 53 = 666.

It is not a de Polignac number, because 651285263853 - 2¹ = 651285263851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 651285263853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651285263851) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4561518 + ... + 4702128.

It is an arithmetic number, because the mean of its divisors is an integer number (15802679620).

Almost surely, 2^651285263853 is an apocalyptic number.

651285263853 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

651285263853 is a deficient number, since it is larger than the sum of its proper divisors (486507668787).

651285263853 is a wasteful number, since it uses less digits than its factorization.

651285263853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141029 (or 141010 counting only the distinct ones).

The product of its digits is 10368000, while the sum is 54.

The spelling of 651285263853 in words is "six hundred fifty-one billion, two hundred eighty-five million, two hundred sixty-three thousand, eight hundred fifty-three".