61257287303 has 8 divisors (see below), whose sum is σ = 62266550400. Its totient is φ = 60255157248.

The previous prime is 61257287281. The next prime is 61257287317. The reversal of 61257287303 is 30378275216.

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 61257287303 - 2²⁰ = 61256238727 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 (61257487303) 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, 1765943 + ... + 1800296.

It is an arithmetic number, because the mean of its divisors is an integer number (7783318800).

Almost surely, 2^61257287303 is an apocalyptic number.

61257287303 is a deficient number, since it is larger than the sum of its proper divisors (1009263097).

61257287303 is a wasteful number, since it uses less digits than its factorization.

61257287303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3566521.

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 61257287303 in words is "sixty-one billion, two hundred fifty-seven million, two hundred eighty-seven thousand, three hundred three".