29723456851964 has 12 divisors (see below), whose sum is σ = 52016177505264. Its totient is φ = 14861691850464.

The previous prime is 29723456851951. The next prime is 29723456851997. The reversal of 29723456851964 is 46915865432792.

It is a super-2 number, since 2×29723456851964² (a number of 28 digits) contains 22 as substring.

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, 7272857 + ... + 10599120.

It is an arithmetic number, because the mean of its divisors is an integer number (4334681458772).

Almost surely, 2^{29723456851964} is an apocalyptic number.

It is an amenable number.

29723456851964 is a deficient number, since it is larger than the sum of its proper divisors (22292720653300).

29723456851964 is a wasteful number, since it uses less digits than its factorization.

29723456851964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18287764 (or 18287762 counting only the distinct ones).

The product of its digits is 783820800, while the sum is 71.

The spelling of 29723456851964 in words is "twenty-nine trillion, seven hundred twenty-three billion, four hundred fifty-six million, eight hundred fifty-one thousand, nine hundred sixty-four".