61373404476403 has 4 divisors (see below), whose sum is σ = 61374036266640. Its totient is φ = 61372772686168.

The previous prime is 61373404476353. The next prime is 61373404476431. The reversal of 61373404476403 is 30467440437316.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61373404476403 - 2⁹ = 61373404475891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61373404476443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315749383 + ... + 315943696.

It is an arithmetic number, because the mean of its divisors is an integer number (15343509066660).

Almost surely, 2^{61373404476403} is an apocalyptic number.

61373404476403 is a deficient number, since it is larger than the sum of its proper divisors (631790237).

61373404476403 is an equidigital number, since it uses as much as digits as its factorization.

61373404476403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631790236.

The product of its (nonzero) digits is 12192768, while the sum is 52.

The spelling of 61373404476403 in words is "sixty-one trillion, three hundred seventy-three billion, four hundred four million, four hundred seventy-six thousand, four hundred three".