61354105440125 has 16 divisors (see below), whose sum is σ = 76589119479600. Its totient is φ = 49070979294400.

The previous prime is 61354105440119. The next prime is 61354105440151. The reversal of 61354105440125 is 52104450145316.

It can be written as a sum of positive squares in 8 ways, for example, as 8645605196281 + 52708500243844 = 2940341^2 + 7260062^2 .

It is not a de Polignac number, because 61354105440125 - 2⁴⁴ = 43761919395709 is a prime.

It is a super-2 number, since 2×61354105440125² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61024670 + ... + 62021919.

It is an arithmetic number, because the mean of its divisors is an integer number (4786819967475).

Almost surely, 2^{61354105440125} is an apocalyptic number.

It is an amenable number.

61354105440125 is a deficient number, since it is larger than the sum of its proper divisors (15235014039475).

61354105440125 is a wasteful number, since it uses less digits than its factorization.

61354105440125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123050593 (or 123050583 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 41.

The spelling of 61354105440125 in words is "sixty-one trillion, three hundred fifty-four billion, one hundred five million, four hundred forty thousand, one hundred twenty-five".