61435514887 has 2 divisors, whose sum is σ = 61435514888. Its totient is φ = 61435514886.

The previous prime is 61435514873. The next prime is 61435514963. The reversal of 61435514887 is 78841553416.

61435514887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61435514887 - 2¹⁹ = 61434990599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61435514857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30717757443 + 30717757444.

It is an arithmetic number, because the mean of its divisors is an integer number (30717757444).

Almost surely, 2^61435514887 is an apocalyptic number.

61435514887 is a deficient number, since it is larger than the sum of its proper divisors (1).

61435514887 is an equidigital number, since it uses as much as digits as its factorization.

61435514887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3225600, while the sum is 52.

The spelling of 61435514887 in words is "sixty-one billion, four hundred thirty-five million, five hundred fourteen thousand, eight hundred eighty-seven".