61464563473 has 4 divisors (see below), whose sum is σ = 61561972288. Its totient is φ = 61367154660.

The previous prime is 61464563423. The next prime is 61464563491. The reversal of 61464563473 is 37436546416.

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 61464563473 - 2¹³ = 61464555281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61464563423) 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 3 ways as a sum of consecutive naturals, for example, 48703461 + ... + 48704722.

It is an arithmetic number, because the mean of its divisors is an integer number (15390493072).

Almost surely, 2^61464563473 is an apocalyptic number.

It is an amenable number.

61464563473 is a deficient number, since it is larger than the sum of its proper divisors (97408815).

61464563473 is an equidigital number, since it uses as much as digits as its factorization.

61464563473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97408814.

The product of its digits is 4354560, while the sum is 49.

The spelling of 61464563473 in words is "sixty-one billion, four hundred sixty-four million, five hundred sixty-three thousand, four hundred seventy-three".