70072686355731 has 16 divisors (see below), whose sum is σ = 93474973804800. Its totient is φ = 46692766931040.

The previous prime is 70072686355729. The next prime is 70072686355747. The reversal of 70072686355731 is 13755368627007.

It is a happy number.

70072686355731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 70072686355731 - 2¹ = 70072686355729 is a prime.

It is a super-2 number, since 2×70072686355731² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70072686355781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51965170 + ... + 53296568.

It is an arithmetic number, because the mean of its divisors is an integer number (5842185862800).

Almost surely, 2^{70072686355731} is an apocalyptic number.

70072686355731 is a deficient number, since it is larger than the sum of its proper divisors (23402287449069).

70072686355731 is a wasteful number, since it uses less digits than its factorization.

70072686355731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339786.

The product of its (nonzero) digits is 44452800, while the sum is 60.

The spelling of 70072686355731 in words is "seventy trillion, seventy-two billion, six hundred eighty-six million, three hundred fifty-five thousand, seven hundred thirty-one".