106726780765 has 8 divisors (see below), whose sum is σ = 139715058528. Its totient is φ = 77619476880.

The previous prime is 106726780717. The next prime is 106726780801. The reversal of 106726780765 is 567087627601.

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

It is not a de Polignac number, because 106726780765 - 2⁷ = 106726780637 is a prime.

It is a super-2 number, since 2×106726780765² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55), and also a Moran number because the ratio is a prime number: 1940486923 = 106726780765 / (1 + 0 + 6 + 7 + 2 + 6 + 7 + 8 + 0 + 7 + 6 + 5).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 970243407 + ... + 970243516.

It is an arithmetic number, because the mean of its divisors is an integer number (17464382316).

Almost surely, 2^106726780765 is an apocalyptic number.

It is an amenable number.

106726780765 is a deficient number, since it is larger than the sum of its proper divisors (32988277763).

106726780765 is a wasteful number, since it uses less digits than its factorization.

106726780765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1940486939.

The product of its (nonzero) digits is 5927040, while the sum is 55.

The spelling of 106726780765 in words is "one hundred six billion, seven hundred twenty-six million, seven hundred eighty thousand, seven hundred sixty-five".