61236488767 has 4 divisors (see below), whose sum is σ = 64459461880. Its totient is φ = 58013515656.

The previous prime is 61236488717. The next prime is 61236488791. The reversal of 61236488767 is 76788463216.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61236488767 - 2⁷ = 61236488639 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 (61236488707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1611486528 + ... + 1611486565.

It is an arithmetic number, because the mean of its divisors is an integer number (16114865470).

Almost surely, 2^61236488767 is an apocalyptic number.

61236488767 is a deficient number, since it is larger than the sum of its proper divisors (3222973113).

61236488767 is a wasteful number, since it uses less digits than its factorization.

61236488767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3222973112.

The product of its digits is 16257024, while the sum is 58.

The spelling of 61236488767 in words is "sixty-one billion, two hundred thirty-six million, four hundred eighty-eight thousand, seven hundred sixty-seven".