10987456826 has 4 divisors (see below), whose sum is σ = 16481185242. Its totient is φ = 5493728412.

The previous prime is 10987456817. The next prime is 10987456903. The reversal of 10987456826 is 62865478901.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62865478901 = 173783 ⋅361747.

It can be written as a sum of positive squares in only one way, i.e., 9565035601 + 1422421225 = 97801^2 + 37715^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2746864205 + ... + 2746864208.

Almost surely, 2^10987456826 is an apocalyptic number.

10987456826 is a deficient number, since it is larger than the sum of its proper divisors (5493728416).

10987456826 is an equidigital number, since it uses as much as digits as its factorization.

10987456826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5493728415.

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 10987456826 in words is "ten billion, nine hundred eighty-seven million, four hundred fifty-six thousand, eight hundred twenty-six".