61438059573 has 16 divisors (see below), whose sum is σ = 89687078976. Its totient is φ = 37100759040.

The previous prime is 61438059509. The next prime is 61438059581. The reversal of 61438059573 is 37595083416.

It is not a de Polignac number, because 61438059573 - 2⁶ = 61438059509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61438059073) 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, 3351436 + ... + 3369717.

It is an arithmetic number, because the mean of its divisors is an integer number (5605442436).

Almost surely, 2^61438059573 is an apocalyptic number.

It is an amenable number.

61438059573 is a deficient number, since it is larger than the sum of its proper divisors (28249019403).

61438059573 is a wasteful number, since it uses less digits than its factorization.

61438059573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6721444.

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 61438059573 in words is "sixty-one billion, four hundred thirty-eight million, fifty-nine thousand, five hundred seventy-three".