61003811287 has 8 divisors (see below), whose sum is σ = 61702602416. Its totient is φ = 60306446592.

The previous prime is 61003811269. The next prime is 61003811321. The reversal of 61003811287 is 78211830016.

61003811287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 61003811287 - 2²³ = 60995422679 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 (61003811887) 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, 270468 + ... + 441769.

It is an arithmetic number, because the mean of its divisors is an integer number (7712825302).

Almost surely, 2^61003811287 is an apocalyptic number.

61003811287 is a deficient number, since it is larger than the sum of its proper divisors (698791129).

61003811287 is an equidigital number, since it uses as much as digits as its factorization.

61003811287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713217.

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 61003811287 in words is "sixty-one billion, three million, eight hundred eleven thousand, two hundred eighty-seven".