2351129629681 has 8 divisors (see below), whose sum is σ = 2693418194880. Its totient is φ = 2010444290448.

The previous prime is 2351129629637. The next prime is 2351129629721. The reversal of 2351129629681 is 1869269211532.

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 2351129629681 - 2⁷ = 2351129629553 is a prime.

It is a super-2 number, since 2×2351129629681² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2351129629081) 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, 400803346 + ... + 400809211.

It is an arithmetic number, because the mean of its divisors is an integer number (336677274360).

Almost surely, 2^{2351129629681} is an apocalyptic number.

It is an amenable number.

2351129629681 is a deficient number, since it is larger than the sum of its proper divisors (342288565199).

2351129629681 is an equidigital number, since it uses as much as digits as its factorization.

2351129629681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801612983.

The product of its digits is 2799360, while the sum is 55.

The spelling of 2351129629681 in words is "two trillion, three hundred fifty-one billion, one hundred twenty-nine million, six hundred twenty-nine thousand, six hundred eighty-one".