61880548037771 has 4 divisors (see below), whose sum is σ = 61893168998832. Its totient is φ = 61867927076712.

The previous prime is 61880548037677. The next prime is 61880548037779. The reversal of 61880548037771 is 17773084508816.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61880548037771 - 2³⁴ = 61863368168587 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61880548037698 and 61880548037707.

It is not an unprimeable number, because it can be changed into a prime (61880548037779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6310473176 + ... + 6310482981.

It is an arithmetic number, because the mean of its divisors is an integer number (15473292249708).

Almost surely, 2^{61880548037771} is an apocalyptic number.

61880548037771 is a deficient number, since it is larger than the sum of its proper divisors (12620961061).

61880548037771 is a wasteful number, since it uses less digits than its factorization.

61880548037771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12620961060.

The product of its (nonzero) digits is 63221760, while the sum is 65.

The spelling of 61880548037771 in words is "sixty-one trillion, eight hundred eighty billion, five hundred forty-eight million, thirty-seven thousand, seven hundred seventy-one".