61263023558 has 32 divisors (see below), whose sum is σ = 100684270080. Its totient is φ = 27725940000.

The previous prime is 61263023557. The next prime is 61263023587. The reversal of 61263023558 is 85532036216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61263023557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16870403 + ... + 16874033.

It is an arithmetic number, because the mean of its divisors is an integer number (3146383440).

Almost surely, 2^61263023558 is an apocalyptic number.

61263023558 is a deficient number, since it is larger than the sum of its proper divisors (39421246522).

61263023558 is a wasteful number, since it uses less digits than its factorization.

61263023558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6764.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 61263023558 in words is "sixty-one billion, two hundred sixty-three million, twenty-three thousand, five hundred fifty-eight".