61628521862827 has 8 divisors (see below), whose sum is σ = 64872259136000. Its totient is φ = 58384797675624.

The previous prime is 61628521862813. The next prime is 61628521862837. The reversal of 61628521862827 is 72826812582616.

It is a happy number.

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 61628521862827 - 2¹⁹ = 61628521338539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61628521862807) 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, 7265674 + ... + 13268272.

It is an arithmetic number, because the mean of its divisors is an integer number (8109032392000).

Almost surely, 2^{61628521862827} is an apocalyptic number.

61628521862827 is a deficient number, since it is larger than the sum of its proper divisors (3243737273173).

61628521862827 is a wasteful number, since it uses less digits than its factorization.

61628521862827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6542985.

The product of its digits is 61931520, while the sum is 64.

The spelling of 61628521862827 in words is "sixty-one trillion, six hundred twenty-eight billion, five hundred twenty-one million, eight hundred sixty-two thousand, eight hundred twenty-seven".