61444083582 has 48 divisors (see below), whose sum is σ = 152508781152. Its totient is φ = 17513737920.

The previous prime is 61444083577. The next prime is 61444083607. The reversal of 61444083582 is 28538044416.

61444083582 is a `hidden beast` number, since 61 + 4 + 4 + 4 + 0 + 8 + 3 + 582 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 526113 + ... + 632204.

It is an arithmetic number, because the mean of its divisors is an integer number (3177266274).

Almost surely, 2^61444083582 is an apocalyptic number.

61444083582 is an abundant number, since it is smaller than the sum of its proper divisors (91064697570).

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

61444083582 is a wasteful number, since it uses less digits than its factorization.

61444083582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158753 (or 1158750 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 45.

The spelling of 61444083582 in words is "sixty-one billion, four hundred forty-four million, eighty-three thousand, five hundred eighty-two".