2151711257652 has 36 divisors (see below), whose sum is σ = 5933506802496. Its totient is φ = 652033714320.

The previous prime is 2151711257611. The next prime is 2151711257669. The reversal of 2151711257652 is 2567521171512.

2151711257652 is a `hidden beast` number, since 2 + 1 + 5 + 1 + 71 + 1 + 2 + 576 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2151711257652² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2151711257598 and 2151711257607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2716806748 + ... + 2716807539.

Almost surely, 2^{2151711257652} is an apocalyptic number.

2151711257652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2151711257652 is an abundant number, since it is smaller than the sum of its proper divisors (3781795544844).

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

2151711257652 is a wasteful number, since it uses less digits than its factorization.

2151711257652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5433614308 (or 5433614303 counting only the distinct ones).

The product of its digits is 294000, while the sum is 45.

The spelling of 2151711257652 in words is "two trillion, one hundred fifty-one billion, seven hundred eleven million, two hundred fifty-seven thousand, six hundred fifty-two".