70987567338661 has 16 divisors (see below), whose sum is σ = 75068028691200. Its totient is φ = 67018675324608.

The previous prime is 70987567338613. The next prime is 70987567338679. The reversal of 70987567338661 is 16683376578907.

It is a cyclic number.

It is not a de Polignac number, because 70987567338661 - 2¹³ = 70987567330469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70987567336661) 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, 22903035 + ... + 25817128.

It is an arithmetic number, because the mean of its divisors is an integer number (4691751793200).

Almost surely, 2^{70987567338661} is an apocalyptic number.

It is an amenable number.

70987567338661 is a deficient number, since it is larger than the sum of its proper divisors (4080461352539).

70987567338661 is a wasteful number, since it uses less digits than its factorization.

70987567338661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48721308.

The product of its (nonzero) digits is 1920360960, while the sum is 76.

The spelling of 70987567338661 in words is "seventy trillion, nine hundred eighty-seven billion, five hundred sixty-seven million, three hundred thirty-eight thousand, six hundred sixty-one".