61422017253172 has 36 divisors (see below), whose sum is σ = 110491203283020. Its totient is φ = 29875825511424.

The previous prime is 61422017253143. The next prime is 61422017253197. The reversal of 61422017253172 is 27135271022416.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 38177025707536 + 23244991545636 = 6178756^2 + 4821306^2 .

It is a super-3 number, since 3×61422017253172³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30867204 + ... + 32796772.

It is an arithmetic number, because the mean of its divisors is an integer number (3069200091195).

Almost surely, 2^{61422017253172} is an apocalyptic number.

It is an amenable number.

61422017253172 is a deficient number, since it is larger than the sum of its proper divisors (49069186029848).

61422017253172 is a wasteful number, since it uses less digits than its factorization.

61422017253172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935460 (or 1935421 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

Adding to 61422017253172 its reverse (27135271022416), we get a palindrome (88557288275588).

The spelling of 61422017253172 in words is "sixty-one trillion, four hundred twenty-two billion, seventeen million, two hundred fifty-three thousand, one hundred seventy-two".