61448829846 has 16 divisors (see below), whose sum is σ = 123722478000. Its totient is φ = 20345473568.

The previous prime is 61448829809. The next prime is 61448829853. The reversal of 61448829846 is 64892884416.

It is a self number, because there is not a number n which added to its sum of digits gives 61448829846.

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, 34366461 + ... + 34368248.

It is an arithmetic number, because the mean of its divisors is an integer number (7732654875).

Almost surely, 2^61448829846 is an apocalyptic number.

61448829846 is an abundant number, since it is smaller than the sum of its proper divisors (62273648154).

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

61448829846 is a wasteful number, since it uses less digits than its factorization.

61448829846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68734863.

The product of its digits is 21233664, while the sum is 60.

The spelling of 61448829846 in words is "sixty-one billion, four hundred forty-eight million, eight hundred twenty-nine thousand, eight hundred forty-six".