61003523713 has 12 divisors (see below), whose sum is σ = 67083652944. Its totient is φ = 55432777400.

The previous prime is 61003523663. The next prime is 61003523717. The reversal of 61003523713 is 31732530016.

It is a de Polignac number, because none of the positive numbers 2^k-61003523713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61003523717) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 159018 + ... + 383788.

It is an arithmetic number, because the mean of its divisors is an integer number (5590304412).

Almost surely, 2^61003523713 is an apocalyptic number.

It is an amenable number.

61003523713 is a deficient number, since it is larger than the sum of its proper divisors (6080129231).

61003523713 is a wasteful number, since it uses less digits than its factorization.

61003523713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227036 (or 227025 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 31.

The spelling of 61003523713 in words is "sixty-one billion, three million, five hundred twenty-three thousand, seven hundred thirteen".