106780378127 has 4 divisors (see below), whose sum is σ = 106783497720. Its totient is φ = 106777258536.

The previous prime is 106780378123. The next prime is 106780378153. The reversal of 106780378127 is 721873087601.

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 106780378127 - 2² = 106780378123 is a prime.

It is a super-2 number, since 2×106780378127² (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 (106780378123) 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, 1507877 + ... + 1577102.

It is an arithmetic number, because the mean of its divisors is an integer number (26695874430).

Almost surely, 2^106780378127 is an apocalyptic number.

106780378127 is a deficient number, since it is larger than the sum of its proper divisors (3119593).

106780378127 is an equidigital number, since it uses as much as digits as its factorization.

106780378127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3119592.

The product of its (nonzero) digits is 790272, while the sum is 50.

The spelling of 106780378127 in words is "one hundred six billion, seven hundred eighty million, three hundred seventy-eight thousand, one hundred twenty-seven".