26921343970 has 8 divisors (see below), whose sum is σ = 48458419164. Its totient is φ = 10768537584.

The previous prime is 26921343959. The next prime is 26921344001. The reversal of 26921343970 is 7934312962.

It can be written as a sum of positive squares in 2 ways, for example, as 25663719601 + 1257624369 = 160199^2 + 35463^2 .

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

It is a super-2 number, since 2×26921343970² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26921343970.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1346067189 + ... + 1346067208.

Almost surely, 2^26921343970 is an apocalyptic number.

26921343970 is a deficient number, since it is larger than the sum of its proper divisors (21537075194).

26921343970 is a wasteful number, since it uses less digits than its factorization.

26921343970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692134404.

The product of its (nonzero) digits is 489888, while the sum is 46.

The spelling of 26921343970 in words is "twenty-six billion, nine hundred twenty-one million, three hundred forty-three thousand, nine hundred seventy".