26990830151 has 4 divisors (see below), whose sum is σ = 26994416904. Its totient is φ = 26987243400.

The previous prime is 26990830129. The next prime is 26990830169. The reversal of 26990830151 is 15103809962.

It is a happy number.

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 26990830151 - 2²² = 26986635847 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 (26990830121) 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, 1782065 + ... + 1797146.

It is an arithmetic number, because the mean of its divisors is an integer number (6748604226).

Almost surely, 2^26990830151 is an apocalyptic number.

26990830151 is a deficient number, since it is larger than the sum of its proper divisors (3586753).

26990830151 is an equidigital number, since it uses as much as digits as its factorization.

26990830151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3586752.

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 26990830151 in words is "twenty-six billion, nine hundred ninety million, eight hundred thirty thousand, one hundred fifty-one".