128762465143 has 4 divisors (see below), whose sum is σ = 138667270168. Its totient is φ = 118857660120.

The previous prime is 128762465113. The next prime is 128762465149. The reversal of 128762465143 is 341564267821.

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 128762465143 - 2²⁵ = 128728910711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128762465149) 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, 4952402493 + ... + 4952402518.

It is an arithmetic number, because the mean of its divisors is an integer number (34666817542).

Almost surely, 2^128762465143 is an apocalyptic number.

128762465143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

128762465143 is a deficient number, since it is larger than the sum of its proper divisors (9904805025).

128762465143 is an equidigital number, since it uses as much as digits as its factorization.

128762465143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9904805024.

The product of its digits is 1935360, while the sum is 49.

The spelling of 128762465143 in words is "one hundred twenty-eight billion, seven hundred sixty-two million, four hundred sixty-five thousand, one hundred forty-three".