2151644703 has 16 divisors (see below), whose sum is σ = 3118421376. Its totient is φ = 1311711840.

The previous prime is 2151644701. The next prime is 2151644717. The reversal of 2151644703 is 3074461512.

It is not a de Polignac number, because 2151644703 - 2¹ = 2151644701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151644701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253633 + ... + 261978.

It is an arithmetic number, because the mean of its divisors is an integer number (194901336).

Almost surely, 2^2151644703 is an apocalyptic number.

2151644703 is a deficient number, since it is larger than the sum of its proper divisors (966776673).

2151644703 is a wasteful number, since it uses less digits than its factorization.

2151644703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515734.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 2151644703 is about 46385.8243755568. The cubic root of 2151644703 is about 1290.9919064189.

The spelling of 2151644703 in words is "two billion, one hundred fifty-one million, six hundred forty-four thousand, seven hundred three".