70040036671 has 4 divisors (see below), whose sum is σ = 76407312744. Its totient is φ = 63672760600.

The previous prime is 70040036653. The next prime is 70040036707. The reversal of 70040036671 is 17663004007.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70040036671 - 2¹³ = 70040028479 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 (70040036611) 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 3 ways as a sum of consecutive naturals, for example, 3183638020 + ... + 3183638041.

It is an arithmetic number, because the mean of its divisors is an integer number (19101828186).

Almost surely, 2^70040036671 is an apocalyptic number.

70040036671 is a deficient number, since it is larger than the sum of its proper divisors (6367276073).

70040036671 is a wasteful number, since it uses less digits than its factorization.

70040036671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6367276072.

The product of its (nonzero) digits is 21168, while the sum is 34.

The spelling of 70040036671 in words is "seventy billion, forty million, thirty-six thousand, six hundred seventy-one".