61725146398 has 32 divisors (see below), whose sum is σ = 95156006400. Its totient is φ = 30018115296.

The previous prime is 61725146341. The next prime is 61725146401. The reversal of 61725146398 is 89364152716.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24659215 + ... + 24661717.

It is an arithmetic number, because the mean of its divisors is an integer number (2973625200).

Almost surely, 2^61725146398 is an apocalyptic number.

61725146398 is a deficient number, since it is larger than the sum of its proper divisors (33430860002).

61725146398 is a wasteful number, since it uses less digits than its factorization.

61725146398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4696.

The product of its digits is 2177280, while the sum is 52.

The spelling of 61725146398 in words is "sixty-one billion, seven hundred twenty-five million, one hundred forty-six thousand, three hundred ninety-eight".