70278385827 has 16 divisors (see below), whose sum is σ = 101284940288. Its totient is φ = 43088643360.

The previous prime is 70278385823. The next prime is 70278385829. The reversal of 70278385827 is 72858387207.

It is not a de Polignac number, because 70278385827 - 2² = 70278385823 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70278385823) 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, 3314173 + ... + 3335310.

It is an arithmetic number, because the mean of its divisors is an integer number (6330308768).

Almost surely, 2^70278385827 is an apocalyptic number.

70278385827 is a deficient number, since it is larger than the sum of its proper divisors (31006554461).

70278385827 is a wasteful number, since it uses less digits than its factorization.

70278385827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6649770.

The product of its (nonzero) digits is 10536960, while the sum is 57.

The spelling of 70278385827 in words is "seventy billion, two hundred seventy-eight million, three hundred eighty-five thousand, eight hundred twenty-seven".