27172260752061 has 16 divisors (see below), whose sum is σ = 38823017494464. Its totient is φ = 16843848854784.

The previous prime is 27172260752053. The next prime is 27172260752081. The reversal of 27172260752061 is 16025706227172.

It is a happy number.

It is not a de Polignac number, because 27172260752061 - 2³ = 27172260752053 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 27172260752061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27172260752041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3209570626 + ... + 3209579091.

It is an arithmetic number, because the mean of its divisors is an integer number (2426438593404).

Almost surely, 2^{27172260752061} is an apocalyptic number.

It is an amenable number.

27172260752061 is a deficient number, since it is larger than the sum of its proper divisors (11650756742403).

27172260752061 is a wasteful number, since it uses less digits than its factorization.

27172260752061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6419149820.

The product of its (nonzero) digits is 987840, while the sum is 48.

The spelling of 27172260752061 in words is "twenty-seven trillion, one hundred seventy-two billion, two hundred sixty million, seven hundred fifty-two thousand, sixty-one".