61688601605734 has 4 divisors (see below), whose sum is σ = 92532902408604. Its totient is φ = 30844300802866.

The previous prime is 61688601605713. The next prime is 61688601605737. The reversal of 61688601605734 is 43750610688616.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61688601605737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15422150401432 + ... + 15422150401435.

It is an arithmetic number, because the mean of its divisors is an integer number (23133225602151).

Almost surely, 2^{61688601605734} is an apocalyptic number.

61688601605734 is a deficient number, since it is larger than the sum of its proper divisors (30844300802870).

61688601605734 is a wasteful number, since it uses less digits than its factorization.

61688601605734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30844300802869.

The product of its (nonzero) digits is 34836480, while the sum is 61.

The spelling of 61688601605734 in words is "sixty-one trillion, six hundred eighty-eight billion, six hundred one million, six hundred five thousand, seven hundred thirty-four".