61043452036 has 96 divisors (see below), whose sum is σ = 131005808640. Its totient is φ = 24316516224.

The previous prime is 61043452027. The next prime is 61043452061. The reversal of 61043452036 is 63025434016.

It is a junction number, because it is equal to n+sod(n) for n = 61043451992 and 61043452010.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30475011 + ... + 30477013.

It is an arithmetic number, because the mean of its divisors is an integer number (1364643840).

Almost surely, 2^61043452036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61043452036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65502904320).

61043452036 is an abundant number, since it is smaller than the sum of its proper divisors (69962356604).

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

61043452036 is a wasteful number, since it uses less digits than its factorization.

61043452036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3353 (or 3351 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 61043452036 in words is "sixty-one billion, forty-three million, four hundred fifty-two thousand, thirty-six".