61284885474 has 32 divisors (see below), whose sum is σ = 127911168000. Its totient is φ = 19538232912.

The previous prime is 61284885439. The next prime is 61284885481. The reversal of 61284885474 is 47458848216.

61284885474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61284885474² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 2489277 + ... + 2513775.

It is an arithmetic number, because the mean of its divisors is an integer number (3997224000).

Almost surely, 2^61284885474 is an apocalyptic number.

61284885474 is an abundant number, since it is smaller than the sum of its proper divisors (66626282526).

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

61284885474 is a wasteful number, since it uses less digits than its factorization.

61284885474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42654.

The product of its digits is 13762560, while the sum is 57.

The spelling of 61284885474 in words is "sixty-one billion, two hundred eighty-four million, eight hundred eighty-five thousand, four hundred seventy-four".