61001582912 has 28 divisors (see below), whose sum is σ = 121060829760. Its totient is φ = 30498066816.

The previous prime is 61001582869. The next prime is 61001582923. The reversal of 61001582912 is 21928510016.

It is a super-2 number, since 2×61001582912² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 812633 + ... + 884519.

Almost surely, 2^61001582912 is an apocalyptic number.

It is an amenable number.

61001582912 is a deficient number, since it is larger than the sum of its proper divisors (60059246848).

61001582912 is a wasteful number, since it uses less digits than its factorization.

61001582912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85158 (or 85148 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 35.

The spelling of 61001582912 in words is "sixty-one billion, one million, five hundred eighty-two thousand, nine hundred twelve".