29979453253 has 2 divisors, whose sum is σ = 29979453254. Its totient is φ = 29979453252.

The previous prime is 29979453211. The next prime is 29979453263. The reversal of 29979453253 is 35235497992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16750312929 + 13229140324 = 129423^2 + 115018^2 .

It is a cyclic number.

It is not a de Polignac number, because 29979453253 - 2¹³ = 29979445061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29979453263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14989726626 + 14989726627.

It is an arithmetic number, because the mean of its divisors is an integer number (14989726627).

Almost surely, 2^29979453253 is an apocalyptic number.

It is an amenable number.

29979453253 is a deficient number, since it is larger than the sum of its proper divisors (1).

29979453253 is an equidigital number, since it uses as much as digits as its factorization.

29979453253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18370800, while the sum is 58.

The spelling of 29979453253 in words is "twenty-nine billion, nine hundred seventy-nine million, four hundred fifty-three thousand, two hundred fifty-three".