12782551101 has 8 divisors (see below), whose sum is σ = 17283449664. Its totient is φ = 8401676640.

The previous prime is 12782551097. The next prime is 12782551123. The reversal of 12782551101 is 10115528721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12782551101 - 2² = 12782551097 is a prime.

It is a super-2 number, since 2×12782551101² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12782553101) 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, 30005776 + ... + 30006201.

It is an arithmetic number, because the mean of its divisors is an integer number (2160431208).

Almost surely, 2^12782551101 is an apocalyptic number.

It is an amenable number.

12782551101 is a deficient number, since it is larger than the sum of its proper divisors (4500898563).

12782551101 is an equidigital number, since it uses as much as digits as its factorization.

12782551101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60012051.

The product of its (nonzero) digits is 5600, while the sum is 33.

The spelling of 12782551101 in words is "twelve billion, seven hundred eighty-two million, five hundred fifty-one thousand, one hundred one".