61384164498 has 32 divisors (see below), whose sum is σ = 136419940800. Its totient is φ = 20459785248.

The previous prime is 61384164497. The next prime is 61384164511. The reversal of 61384164498 is 89446148316.

61384164498 is a `hidden beast` number, since 6 + 13 + 84 + 1 + 64 + 498 = 666.

It is a super-2 number, since 2×61384164498² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61384164497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 797118 + ... + 870726.

It is an arithmetic number, because the mean of its divisors is an integer number (4263123150).

Almost surely, 2^61384164498 is an apocalyptic number.

61384164498 is an abundant number, since it is smaller than the sum of its proper divisors (75035776302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61384164498 is a wasteful number, since it uses less digits than its factorization.

61384164498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89063 (or 89057 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The spelling of 61384164498 in words is "sixty-one billion, three hundred eighty-four million, one hundred sixty-four thousand, four hundred ninety-eight".