70881380642 has 8 divisors (see below), whose sum is σ = 108915292332. Its totient is φ = 34576283200.

The previous prime is 70881380629. The next prime is 70881380663. The reversal of 70881380642 is 24608318807.

It can be written as a sum of positive squares in 2 ways, for example, as 70298689321 + 582691321 = 265139^2 + 24139^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 432203459 + ... + 432203622.

Almost surely, 2^70881380642 is an apocalyptic number.

70881380642 is a deficient number, since it is larger than the sum of its proper divisors (38033911690).

70881380642 is a wasteful number, since it uses less digits than its factorization.

70881380642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864407124.

The product of its (nonzero) digits is 516096, while the sum is 47.

The spelling of 70881380642 in words is "seventy billion, eight hundred eighty-one million, three hundred eighty thousand, six hundred forty-two".