345872528620031 has 4 divisors (see below), whose sum is σ = 395282889851472. Its totient is φ = 296462167388592.

The previous prime is 345872528620027. The next prime is 345872528620039. The reversal of 345872528620031 is 130026825278543.

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 345872528620031 - 2² = 345872528620027 is a prime.

It is a super-2 number, since 2×345872528620031² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345872528620039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24705180615710 + ... + 24705180615723.

It is an arithmetic number, because the mean of its divisors is an integer number (98820722462868).

Almost surely, 2^{345872528620031} is an apocalyptic number.

345872528620031 is a deficient number, since it is larger than the sum of its proper divisors (49410361231441).

345872528620031 is an equidigital number, since it uses as much as digits as its factorization.

345872528620031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49410361231440.

The product of its (nonzero) digits is 19353600, while the sum is 56.

The spelling of 345872528620031 in words is "three hundred forty-five trillion, eight hundred seventy-two billion, five hundred twenty-eight million, six hundred twenty thousand, thirty-one".