61539082748 has 192 divisors, whose sum is σ = 141537715200. Its totient is φ = 22937333760.

The previous prime is 61539082727. The next prime is 61539082753. The reversal of 61539082748 is 84728093516.

61539082748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 61539082748.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 73347713 + ... + 73348551.

It is an arithmetic number, because the mean of its divisors is an integer number (737175600).

It is a 2-persistent number, because it is pandigital, and so is 2⋅61539082748 = 123078165496, but 3⋅61539082748 = 184617248244 is not.

Almost surely, 2^61539082748 is an apocalyptic number.

61539082748 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

61539082748 is an abundant number, since it is smaller than the sum of its proper divisors (79998632452).

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

61539082748 is a wasteful number, since it uses less digits than its factorization.

61539082748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300 (or 1298 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 61539082748 in words is "sixty-one billion, five hundred thirty-nine million, eighty-two thousand, seven hundred forty-eight".