61338363601 has 4 divisors (see below), whose sum is σ = 61881181092. Its totient is φ = 60795546112.

The previous prime is 61338363589. The next prime is 61338363637. The reversal of 61338363601 is 10636383316.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1802851600 + 59535512001 = 42460^2 + 243999^2 .

It is a cyclic number.

It is not a de Polignac number, because 61338363601 - 2²¹ = 61336266449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61338363641) 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, 271408576 + ... + 271408801.

It is an arithmetic number, because the mean of its divisors is an integer number (15470295273).

Almost surely, 2^61338363601 is an apocalyptic number.

It is an amenable number.

61338363601 is a deficient number, since it is larger than the sum of its proper divisors (542817491).

61338363601 is a wasteful number, since it uses less digits than its factorization.

61338363601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542817490.

The product of its (nonzero) digits is 139968, while the sum is 40.

The spelling of 61338363601 in words is "sixty-one billion, three hundred thirty-eight million, three hundred sixty-three thousand, six hundred one".