61903600789 has 4 divisors (see below), whose sum is σ = 63343219456. Its totient is φ = 60463982124.

The previous prime is 61903600699. The next prime is 61903600813. The reversal of 61903600789 is 98700630916.

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 61903600789 - 2²⁹ = 61366729877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61903600589) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 719809269 + ... + 719809354.

It is an arithmetic number, because the mean of its divisors is an integer number (15835804864).

Almost surely, 2^61903600789 is an apocalyptic number.

It is an amenable number.

61903600789 is a deficient number, since it is larger than the sum of its proper divisors (1439618667).

61903600789 is a wasteful number, since it uses less digits than its factorization.

61903600789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439618666.

The product of its (nonzero) digits is 489888, while the sum is 49.

The spelling of 61903600789 in words is "sixty-one billion, nine hundred three million, six hundred thousand, seven hundred eighty-nine".