61146678 has 16 divisors (see below), whose sum is σ = 122728896. Its totient is φ = 20309640.

The previous prime is 61146667. The next prime is 61146689. The reversal of 61146678 is 87664116.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (61146667) and next prime (61146689).

It is a congruent number.

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, 16308 + ... + 19703.

It is an arithmetic number, because the mean of its divisors is an integer number (7670556).

Almost surely, 2^61146678 is an apocalyptic number.

61146678 is an abundant number, since it is smaller than the sum of its proper divisors (61582218).

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

61146678 is a wasteful number, since it uses less digits than its factorization.

61146678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36299.

The product of its digits is 48384, while the sum is 39.

The square root of 61146678 is about 7819.6341346638. The cubic root of 61146678 is about 393.9649835320.

The spelling of 61146678 in words is "sixty-one million, one hundred forty-six thousand, six hundred seventy-eight".