61353012859880 has 64 divisors (see below), whose sum is σ = 157862337264000. Its totient is φ = 21022325754624.

The previous prime is 61353012859877. The next prime is 61353012859889. The reversal of 61353012859880 is 8895821035316.

It is a happy number.

It is a super-2 number, since 2×61353012859880² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61353012859889) 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, 67217435 + ... + 68124074.

It is an arithmetic number, because the mean of its divisors is an integer number (2466599019750).

Almost surely, 2^{61353012859880} is an apocalyptic number.

It is an amenable number.

61353012859880 is an abundant number, since it is smaller than the sum of its proper divisors (96509324404120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61353012859880 is a wasteful number, since it uses less digits than its factorization.

61353012859880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135343146 (or 135343142 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 59.

The spelling of 61353012859880 in words is "sixty-one trillion, three hundred fifty-three billion, twelve million, eight hundred fifty-nine thousand, eight hundred eighty".