61151047684 has 96 divisors (see below), whose sum is σ = 118007366400. Its totient is φ = 27612168192.

The previous prime is 61151047673. The next prime is 61151047691. The reversal of 61151047684 is 48674015116.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 61151047684.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42259849 + ... + 42261295.

It is an arithmetic number, because the mean of its divisors is an integer number (1229243400).

Almost surely, 2^61151047684 is an apocalyptic number.

It is an amenable number.

61151047684 is a deficient number, since it is larger than the sum of its proper divisors (56856318716).

61151047684 is a wasteful number, since it uses less digits than its factorization.

61151047684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757 (or 1755 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 61151047684 in words is "sixty-one billion, one hundred fifty-one million, forty-seven thousand, six hundred eighty-four".