61523545141 has 4 divisors (see below), whose sum is σ = 61524818784. Its totient is φ = 61522271500.

The previous prime is 61523545067. The next prime is 61523545157. The reversal of 61523545141 is 14154532516.

61523545141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61523545141 - 2³⁵ = 27163806773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61523545141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61523545541) 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, 561385 + ... + 661966.

It is an arithmetic number, because the mean of its divisors is an integer number (15381204696).

Almost surely, 2^61523545141 is an apocalyptic number.

It is an amenable number.

61523545141 is a deficient number, since it is larger than the sum of its proper divisors (1273643).

61523545141 is a wasteful number, since it uses less digits than its factorization.

61523545141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273642.

The product of its digits is 72000, while the sum is 37.

The spelling of 61523545141 in words is "sixty-one billion, five hundred twenty-three million, five hundred forty-five thousand, one hundred forty-one".