70673703437 has 4 divisors (see below), whose sum is σ = 70674318396. Its totient is φ = 70673088480.

The previous prime is 70673703431. The next prime is 70673703481. The reversal of 70673703437 is 73430737607.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 49652763241 + 21020940196 = 222829^2 + 144986^2 .

It is a cyclic number.

It is not a de Polignac number, because 70673703437 - 2¹⁰ = 70673702413 is a prime.

It is a super-2 number, since 2×70673703437² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70673703391 and 70673703400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70673703431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78008 + ... + 383969.

It is an arithmetic number, because the mean of its divisors is an integer number (17668579599).

Almost surely, 2^70673703437 is an apocalyptic number.

It is an amenable number.

70673703437 is a deficient number, since it is larger than the sum of its proper divisors (614959).

70673703437 is a wasteful number, since it uses less digits than its factorization.

70673703437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614958.

The product of its (nonzero) digits is 1555848, while the sum is 47.

The spelling of 70673703437 in words is "seventy billion, six hundred seventy-three million, seven hundred three thousand, four hundred thirty-seven".