29734570853 has 4 divisors (see below), whose sum is σ = 32021845548. Its totient is φ = 27447296160.

The previous prime is 29734570849. The next prime is 29734570903. The reversal of 29734570853 is 35807543792.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13109563009 + 16625007844 = 114497^2 + 128938^2 .

It is a cyclic number.

It is not a de Polignac number, because 29734570853 - 2² = 29734570849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29734570795 and 29734570804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29734573853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1143637328 + ... + 1143637353.

It is an arithmetic number, because the mean of its divisors is an integer number (8005461387).

Almost surely, 2^29734570853 is an apocalyptic number.

It is an amenable number.

29734570853 is a deficient number, since it is larger than the sum of its proper divisors (2287274695).

29734570853 is a wasteful number, since it uses less digits than its factorization.

29734570853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2287274694.

The product of its (nonzero) digits is 6350400, while the sum is 53.

The spelling of 29734570853 in words is "twenty-nine billion, seven hundred thirty-four million, five hundred seventy thousand, eight hundred fifty-three".