2623397785971 has 4 divisors (see below), whose sum is σ = 3497863714632. Its totient is φ = 1748931857312.

The previous prime is 2623397785937. The next prime is 2623397785997. The reversal of 2623397785971 is 1795877933262.

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 2623397785971 - 2¹⁵ = 2623397753203 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2623397785896 and 2623397785905.

It is not an unprimeable number, because it can be changed into a prime (2623397785571) 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, 437232964326 + ... + 437232964331.

It is an arithmetic number, because the mean of its divisors is an integer number (874465928658).

Almost surely, 2^{2623397785971} is an apocalyptic number.

2623397785971 is a deficient number, since it is larger than the sum of its proper divisors (874465928661).

2623397785971 is an equidigital number, since it uses as much as digits as its factorization.

2623397785971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874465928660.

The product of its digits is 240045120, while the sum is 69.

The spelling of 2623397785971 in words is "two trillion, six hundred twenty-three billion, three hundred ninety-seven million, seven hundred eighty-five thousand, nine hundred seventy-one".