72406670213706 has 16 divisors (see below), whose sum is σ = 144928362952800. Its totient is φ = 24116386317008.

The previous prime is 72406670213693. The next prime is 72406670213707. The reversal of 72406670213706 is 60731207660427.

It is not an unprimeable number, because it can be changed into a prime (72406670213707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4792597041 + ... + 4792612148.

It is an arithmetic number, because the mean of its divisors is an integer number (9058022684550).

Almost surely, 2^{72406670213706} is an apocalyptic number.

72406670213706 is an abundant number, since it is smaller than the sum of its proper divisors (72521692739094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72406670213706 is a wasteful number, since it uses less digits than its factorization.

72406670213706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9585210453.

The product of its (nonzero) digits is 3556224, while the sum is 51.

The spelling of 72406670213706 in words is "seventy-two trillion, four hundred six billion, six hundred seventy million, two hundred thirteen thousand, seven hundred six".