61347211730 has 16 divisors (see below), whose sum is σ = 126199978560. Its totient is φ = 21033329712.

The previous prime is 61347211729. The next prime is 61347211747. The reversal of 61347211730 is 3711274316.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438194300 + ... + 438194439.

It is an arithmetic number, because the mean of its divisors is an integer number (7887498660).

Almost surely, 2^61347211730 is an apocalyptic number.

61347211730 is an abundant number, since it is smaller than the sum of its proper divisors (64852766830).

61347211730 is a wasteful number, since it uses less digits than its factorization.

61347211730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876388753.

The product of its (nonzero) digits is 21168, while the sum is 35.

The spelling of 61347211730 in words is "sixty-one billion, three hundred forty-seven million, two hundred eleven thousand, seven hundred thirty".