102782073623 has 4 divisors (see below), whose sum is σ = 102881766288. Its totient is φ = 102682380960.

The previous prime is 102782073619. The next prime is 102782073643. The reversal of 102782073623 is 326370287201.

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 102782073623 - 2² = 102782073619 is a prime.

It is a super-2 number, since 2×102782073623² (a number of 23 digits) 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 (102782073643) 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, 49844786 + ... + 49846847.

It is an arithmetic number, because the mean of its divisors is an integer number (25720441572).

Almost surely, 2^102782073623 is an apocalyptic number.

102782073623 is a deficient number, since it is larger than the sum of its proper divisors (99692665).

102782073623 is an equidigital number, since it uses as much as digits as its factorization.

102782073623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99692664.

The product of its (nonzero) digits is 169344, while the sum is 41.

The spelling of 102782073623 in words is "one hundred two billion, seven hundred eighty-two million, seventy-three thousand, six hundred twenty-three".