70456378815 has 24 divisors (see below), whose sum is σ = 122330379600. Its totient is φ = 37513353984.

The previous prime is 70456378793. The next prime is 70456378823. The reversal of 70456378815 is 51887365407.

It is a happy number.

70456378815 is a `hidden beast` number, since 7 + 0 + 4 + 563 + 78 + 8 + 1 + 5 = 666.

It is not a de Polignac number, because 70456378815 - 2¹³ = 70456370623 is a prime.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1293465 + ... + 1346834.

It is an arithmetic number, because the mean of its divisors is an integer number (5097099150).

Almost surely, 2^70456378815 is an apocalyptic number.

70456378815 is a deficient number, since it is larger than the sum of its proper divisors (51874000785).

70456378815 is a wasteful number, since it uses less digits than its factorization.

70456378815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640903 (or 2640900 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 54.

The spelling of 70456378815 in words is "seventy billion, four hundred fifty-six million, three hundred seventy-eight thousand, eight hundred fifteen".