2151432775640 has 16 divisors (see below), whose sum is σ = 4840723745280. Its totient is φ = 860573110240.

The previous prime is 2151432775589. The next prime is 2151432775693. The reversal of 2151432775640 is 465772341512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26892909656 + ... + 26892909735.

It is an arithmetic number, because the mean of its divisors is an integer number (302545234080).

Almost surely, 2^{2151432775640} is an apocalyptic number.

2151432775640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2151432775640 is an abundant number, since it is smaller than the sum of its proper divisors (2689290969640).

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

2151432775640 is a wasteful number, since it uses less digits than its factorization.

2151432775640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53785819402 (or 53785819398 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 47.

The spelling of 2151432775640 in words is "two trillion, one hundred fifty-one billion, four hundred thirty-two million, seven hundred seventy-five thousand, six hundred forty".