61432202646313 has 4 divisors (see below), whose sum is σ = 61432521188688. Its totient is φ = 61431884103940.

The previous prime is 61432202646233. The next prime is 61432202646343. The reversal of 61432202646313 is 31364620223416.

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 61432202646313 - 2⁴¹ = 59233179390761 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61432202646313.

It is not an unprimeable number, because it can be changed into a prime (61432202646343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158981731 + ... + 159367672.

It is an arithmetic number, because the mean of its divisors is an integer number (15358130297172).

Almost surely, 2^{61432202646313} is an apocalyptic number.

It is an amenable number.

61432202646313 is a deficient number, since it is larger than the sum of its proper divisors (318542375).

61432202646313 is a wasteful number, since it uses less digits than its factorization.

61432202646313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318542374.

The product of its (nonzero) digits is 746496, while the sum is 43.

Adding to 61432202646313 its reverse (31364620223416), we get a palindrome (92796822869729).

The spelling of 61432202646313 in words is "sixty-one trillion, four hundred thirty-two billion, two hundred two million, six hundred forty-six thousand, three hundred thirteen".