61344723037 has 32 divisors (see below), whose sum is σ = 68460868224. Its totient is φ = 54606720000.

The previous prime is 61344723029. The next prime is 61344723043. The reversal of 61344723037 is 73032744316.

It is a cyclic number.

It is not a de Polignac number, because 61344723037 - 2³ = 61344723029 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 (61344723007) 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 31 ways as a sum of consecutive naturals, for example, 18326598 + ... + 18329944.

It is an arithmetic number, because the mean of its divisors is an integer number (2139402132).

Almost surely, 2^61344723037 is an apocalyptic number.

It is an amenable number.

61344723037 is a deficient number, since it is larger than the sum of its proper divisors (7116145187).

61344723037 is a wasteful number, since it uses less digits than its factorization.

61344723037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3789.

The product of its (nonzero) digits is 254016, while the sum is 40.

The spelling of 61344723037 in words is "sixty-one billion, three hundred forty-four million, seven hundred twenty-three thousand, thirty-seven".