61604763503 has 8 divisors (see below), whose sum is σ = 63095793600. Its totient is φ = 60121245600.

The previous prime is 61604763469. The next prime is 61604763509. The reversal of 61604763503 is 30536740616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61604763503 - 2⁸ = 61604763247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61604763509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1861448 + ... + 1894253.

It is an arithmetic number, because the mean of its divisors is an integer number (7886974200).

Almost surely, 2^61604763503 is an apocalyptic number.

61604763503 is a deficient number, since it is larger than the sum of its proper divisors (1491030097).

61604763503 is a wasteful number, since it uses less digits than its factorization.

61604763503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3756097.

The product of its (nonzero) digits is 272160, while the sum is 41.

The spelling of 61604763503 in words is "sixty-one billion, six hundred four million, seven hundred sixty-three thousand, five hundred three".