61237063117 has 4 divisors (see below), whose sum is σ = 61237592316. Its totient is φ = 61236533920.

The previous prime is 61237063109. The next prime is 61237063133. The reversal of 61237063117 is 71136073216.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 35152875081 + 26084188036 = 187491^2 + 161506^2 .

It is a cyclic number.

It is not a de Polignac number, because 61237063117 - 2³ = 61237063109 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 (61237063717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8218 + ... + 350059.

It is an arithmetic number, because the mean of its divisors is an integer number (15309398079).

Almost surely, 2^61237063117 is an apocalyptic number.

It is an amenable number.

61237063117 is a deficient number, since it is larger than the sum of its proper divisors (529199).

61237063117 is a wasteful number, since it uses less digits than its factorization.

61237063117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529198.

The product of its (nonzero) digits is 31752, while the sum is 37.

The spelling of 61237063117 in words is "sixty-one billion, two hundred thirty-seven million, sixty-three thousand, one hundred seventeen".