70387478307 has 16 divisors (see below), whose sum is σ = 105987219360. Its totient is φ = 46155722400.

The previous prime is 70387478297. The next prime is 70387478311.

70387478307 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 70387478307 - 2⁷ = 70387478179 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (70387478387) 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 15 ways as a sum of consecutive naturals, for example, 21366744 + ... + 21370037.

It is an arithmetic number, because the mean of its divisors is an integer number (6624201210).

Almost surely, 2^70387478307 is an apocalyptic number.

70387478307 is a deficient number, since it is larger than the sum of its proper divisors (35599741053).

70387478307 is a wasteful number, since it uses less digits than its factorization.

70387478307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42736851 (or 42736845 counting only the distinct ones).

The product of its (nonzero) digits is 5531904, while the sum is 54.

The spelling of 70387478307 in words is "seventy billion, three hundred eighty-seven million, four hundred seventy-eight thousand, three hundred seven".