61147836607 has 8 divisors (see below), whose sum is σ = 71838018000. Its totient is φ = 51312869760.

The previous prime is 61147836577. The next prime is 61147836677. The reversal of 61147836607 is 70663874116.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61147836607 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 (61147836677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213803482 + ... + 213803767.

It is an arithmetic number, because the mean of its divisors is an integer number (8979752250).

Almost surely, 2^61147836607 is an apocalyptic number.

61147836607 is a deficient number, since it is larger than the sum of its proper divisors (10690181393).

61147836607 is a wasteful number, since it uses less digits than its factorization.

61147836607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427607273.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 61147836607 in words is "sixty-one billion, one hundred forty-seven million, eight hundred thirty-six thousand, six hundred seven".