72134449202699 has 48 divisors (see below), whose sum is σ = 79748903001600. Its totient is φ = 65202663322368.

The previous prime is 72134449202687. The next prime is 72134449202719. The reversal of 72134449202699 is 99620294443127.

It is a de Polignac number, because none of the positive numbers 2^k-72134449202699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72134449202609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1769759282 + ... + 1769800040.

It is an arithmetic number, because the mean of its divisors is an integer number (1661435479200).

Almost surely, 2^{72134449202699} is an apocalyptic number.

72134449202699 is a deficient number, since it is larger than the sum of its proper divisors (7614453798901).

72134449202699 is a wasteful number, since it uses less digits than its factorization.

72134449202699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41884 (or 41871 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 62.

The spelling of 72134449202699 in words is "seventy-two trillion, one hundred thirty-four billion, four hundred forty-nine million, two hundred two thousand, six hundred ninety-nine".