2151609934 has 64 divisors (see below), whose sum is σ = 3585306240. Its totient is φ = 965099520.

The previous prime is 2151609923. The next prime is 2151609937. The reversal of 2151609934 is 4399061512.

2151609934 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151609937) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11148142 + ... + 11148334.

It is an arithmetic number, because the mean of its divisors is an integer number (56020410).

Almost surely, 2^2151609934 is an apocalyptic number.

2151609934 is a deficient number, since it is larger than the sum of its proper divisors (1433696306).

2151609934 is a wasteful number, since it uses less digits than its factorization.

2151609934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 2151609934 is about 46385.4495935956. The cubic root of 2151609934 is about 1290.9849525540.

The spelling of 2151609934 in words is "two billion, one hundred fifty-one million, six hundred nine thousand, nine hundred thirty-four".