61338521850611 has 8 divisors (see below), whose sum is σ = 63317817976704. Its totient is φ = 59359265357760.

The previous prime is 61338521850589. The next prime is 61338521850667. The reversal of 61338521850611 is 11605812583316.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61338521850611 - 2¹⁰ = 61338521849587 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 61338521850611.

It is not an unprimeable number, because it can be changed into a prime (61338521850511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6747050 + ... + 12969183.

It is an arithmetic number, because the mean of its divisors is an integer number (7914727247088).

Almost surely, 2^{61338521850611} is an apocalyptic number.

61338521850611 is a deficient number, since it is larger than the sum of its proper divisors (1979296126093).

61338521850611 is a wasteful number, since it uses less digits than its factorization.

61338521850611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19816621.

The product of its (nonzero) digits is 1036800, while the sum is 50.

The spelling of 61338521850611 in words is "sixty-one trillion, three hundred thirty-eight billion, five hundred twenty-one million, eight hundred fifty thousand, six hundred eleven".