61313787546 has 16 divisors (see below), whose sum is σ = 133775536608. Its totient is φ = 18579935600.

The previous prime is 61313787533. The next prime is 61313787551. The reversal of 61313787546 is 64578731316.

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 7 ways as a sum of consecutive naturals, for example, 464498325 + ... + 464498456.

It is an arithmetic number, because the mean of its divisors is an integer number (8360971038).

Almost surely, 2^61313787546 is an apocalyptic number.

61313787546 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

61313787546 is an abundant number, since it is smaller than the sum of its proper divisors (72461749062).

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

61313787546 is a wasteful number, since it uses less digits than its factorization.

61313787546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928996797.

The product of its digits is 2540160, while the sum is 51.

The spelling of 61313787546 in words is "sixty-one billion, three hundred thirteen million, seven hundred eighty-seven thousand, five hundred forty-six".