61589631398 has 32 divisors (see below), whose sum is σ = 98619016320. Its totient is φ = 28746506880.

The previous prime is 61589631391. The next prime is 61589631457. The reversal of 61589631398 is 89313698516.

61589631398 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61589631391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14513465 + ... + 14517707.

It is an arithmetic number, because the mean of its divisors is an integer number (3081844260).

Almost surely, 2^61589631398 is an apocalyptic number.

61589631398 is a deficient number, since it is larger than the sum of its proper divisors (37029384922).

61589631398 is a wasteful number, since it uses less digits than its factorization.

61589631398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7652.

The product of its digits is 8398080, while the sum is 59.

The spelling of 61589631398 in words is "sixty-one billion, five hundred eighty-nine million, six hundred thirty-one thousand, three hundred ninety-eight".