70272444278681 has 16 divisors (see below), whose sum is σ = 71289989621760. Its totient is φ = 69262941162240.

The previous prime is 70272444278593. The next prime is 70272444278741. The reversal of 70272444278681 is 18687244427207.

It is a cyclic number.

It is not a de Polignac number, because 70272444278681 - 2¹⁰ = 70272444277657 is a prime.

It is a super-2 number, since 2×70272444278681² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70272444278581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20893790 + ... + 24022808.

It is an arithmetic number, because the mean of its divisors is an integer number (4455624351360).

Almost surely, 2^{70272444278681} is an apocalyptic number.

It is an amenable number.

70272444278681 is a deficient number, since it is larger than the sum of its proper divisors (1017545343079).

70272444278681 is a wasteful number, since it uses less digits than its factorization.

70272444278681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3130304.

The product of its (nonzero) digits is 67436544, while the sum is 62.

The spelling of 70272444278681 in words is "seventy trillion, two hundred seventy-two billion, four hundred forty-four million, two hundred seventy-eight thousand, six hundred eighty-one".