2585451552651 has 80 divisors (see below), whose sum is σ = 4293985893120. Its totient is φ = 1536959810880.

The previous prime is 2585451552637. The next prime is 2585451552653. The reversal of 2585451552651 is 1562551545852.

2585451552651 is a `hidden beast` number, since 2 + 5 + 8 + 54 + 5 + 15 + 526 + 51 = 666.

It is not a de Polignac number, because 2585451552651 - 2¹⁵ = 2585451519883 is a prime.

It is a super-2 number, since 2×2585451552651² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2585451552653) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 342032410 + ... + 342039968.

It is an arithmetic number, because the mean of its divisors is an integer number (53674823664).

Almost surely, 2^{2585451552651} is an apocalyptic number.

2585451552651 is a deficient number, since it is larger than the sum of its proper divisors (1708534340469).

2585451552651 is a wasteful number, since it uses less digits than its factorization.

2585451552651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14878 (or 14869 counting only the distinct ones).

The product of its digits is 12000000, while the sum is 54.

The spelling of 2585451552651 in words is "two trillion, five hundred eighty-five billion, four hundred fifty-one million, five hundred fifty-two thousand, six hundred fifty-one".