61284730146 has 16 divisors (see below), whose sum is σ = 125882148864. Its totient is φ = 19876128624.

The previous prime is 61284730081. The next prime is 61284730229. The reversal of 61284730146 is 64103748216.

It is a junction number, because it is equal to n+sod(n) for n = 61284730098 and 61284730107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138028450 + ... + 138028893.

It is an arithmetic number, because the mean of its divisors is an integer number (7867634304).

Almost surely, 2^61284730146 is an apocalyptic number.

61284730146 is an abundant number, since it is smaller than the sum of its proper divisors (64597418718).

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

61284730146 is a wasteful number, since it uses less digits than its factorization.

61284730146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276057385.

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 61284730146 in words is "sixty-one billion, two hundred eighty-four million, seven hundred thirty thousand, one hundred forty-six".