61151199587 has 2 divisors, whose sum is σ = 61151199588. Its totient is φ = 61151199586.

The previous prime is 61151199569. The next prime is 61151199611. The reversal of 61151199587 is 78599115116.

It is a happy number.

61151199587 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 61151199587 - 2⁶ = 61151199523 is a prime.

It is not a weakly prime, because it can be changed into another prime (61151199547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30575599793 + 30575599794.

It is an arithmetic number, because the mean of its divisors is an integer number (30575599794).

Almost surely, 2^61151199587 is an apocalyptic number.

61151199587 is a deficient number, since it is larger than the sum of its proper divisors (1).

61151199587 is an equidigital number, since it uses as much as digits as its factorization.

61151199587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 53.

The spelling of 61151199587 in words is "sixty-one billion, one hundred fifty-one million, one hundred ninety-nine thousand, five hundred eighty-seven".