26247860381 has 8 divisors (see below), whose sum is σ = 26358948000. Its totient is φ = 26136978480.

The previous prime is 26247860377. The next prime is 26247860393. The reversal of 26247860381 is 18306874262.

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

It is a cyclic number.

It is not a de Polignac number, because 26247860381 - 2² = 26247860377 is a prime.

It is a super-2 number, since 2×26247860381² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26247860321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207026 + ... + 308796.

It is an arithmetic number, because the mean of its divisors is an integer number (3294868500).

Almost surely, 2^26247860381 is an apocalyptic number.

It is an amenable number.

26247860381 is a deficient number, since it is larger than the sum of its proper divisors (111087619).

26247860381 is a wasteful number, since it uses less digits than its factorization.

26247860381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102859.

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 26247860381 in words is "twenty-six billion, two hundred forty-seven million, eight hundred sixty thousand, three hundred eighty-one".