61489269452 has 96 divisors (see below), whose sum is σ = 118879488000. Its totient is φ = 27658616832.

The previous prime is 61489269409. The next prime is 61489269487. The reversal of 61489269452 is 25496298416.

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 31 ways as a sum of consecutive naturals, for example, 136946924 + ... + 136947372.

It is an arithmetic number, because the mean of its divisors is an integer number (1238328000).

Almost surely, 2^61489269452 is an apocalyptic number.

It is an amenable number.

61489269452 is a deficient number, since it is larger than the sum of its proper divisors (57390218548).

61489269452 is a wasteful number, since it uses less digits than its factorization.

61489269452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915 (or 913 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 56.

The spelling of 61489269452 in words is "sixty-one billion, four hundred eighty-nine million, two hundred sixty-nine thousand, four hundred fifty-two".