2581421186070 has 48 divisors (see below), whose sum is σ = 6714512131392. Its totient is φ = 688090055040.

The previous prime is 2581421186023. The next prime is 2581421186093. The reversal of 2581421186070 is 706811241852.

2581421186070 is a `hidden beast` number, since 2 + 5 + 8 + 1 + 4 + 21 + 18 + 607 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5803671 + ... + 6232610.

It is an arithmetic number, because the mean of its divisors is an integer number (139885669404).

Almost surely, 2^{2581421186070} is an apocalyptic number.

2581421186070 is an abundant number, since it is smaller than the sum of its proper divisors (4133090945322).

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

2581421186070 is a wasteful number, since it uses less digits than its factorization.

2581421186070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12038677 (or 12038674 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 2581421186070 in words is "two trillion, five hundred eighty-one billion, four hundred twenty-one million, one hundred eighty-six thousand, seventy".