1881426351 has 8 divisors (see below), whose sum is σ = 2866935424. Its totient is φ = 1075100760.

The previous prime is 1881426319. The next prime is 1881426353. The reversal of 1881426351 is 1536241881.

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

It is not a de Polignac number, because 1881426351 - 2⁵ = 1881426319 is a prime.

It is a super-2 number, since 2×1881426351² = 7079530228474350402, which 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 (1881426353) 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, 44795845 + ... + 44795886.

It is an arithmetic number, because the mean of its divisors is an integer number (358366928).

Almost surely, 2^1881426351 is an apocalyptic number.

1881426351 is a deficient number, since it is larger than the sum of its proper divisors (985509073).

1881426351 is an equidigital number, since it uses as much as digits as its factorization.

1881426351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89591741.

The product of its digits is 46080, while the sum is 39.

The square root of 1881426351 is about 43375.4118251343. The cubic root of 1881426351 is about 1234.5132080305.

The spelling of 1881426351 in words is "one billion, eight hundred eighty-one million, four hundred twenty-six thousand, three hundred fifty-one".