61787450383 has 8 divisors (see below), whose sum is σ = 62072648640. Its totient is φ = 61502474880.

The previous prime is 61787450353. The next prime is 61787450399. The reversal of 61787450383 is 38305478716.

61787450383 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61787450383 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 61787450383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61787450353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 513723 + ... + 622483.

It is an arithmetic number, because the mean of its divisors is an integer number (7759081080).

Almost surely, 2^61787450383 is an apocalyptic number.

61787450383 is a deficient number, since it is larger than the sum of its proper divisors (285198257).

61787450383 is a wasteful number, since it uses less digits than its factorization.

61787450383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111377.

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 61787450383 in words is "sixty-one billion, seven hundred eighty-seven million, four hundred fifty thousand, three hundred eighty-three".