61826396390552 has 16 divisors (see below), whose sum is σ = 115932299292600. Its totient is φ = 30911116579200.

The previous prime is 61826396390537. The next prime is 61826396390609. The reversal of 61826396390552 is 25509369362816.

It is a super-2 number, since 2×61826396390552² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260075777 + ... + 260313392.

Almost surely, 2^{61826396390552} is an apocalyptic number.

It is an amenable number.

61826396390552 is a deficient number, since it is larger than the sum of its proper divisors (54105902902048).

61826396390552 is a wasteful number, since it uses less digits than its factorization.

61826396390552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520404026 (or 520404022 counting only the distinct ones).

The product of its (nonzero) digits is 125971200, while the sum is 65.

The spelling of 61826396390552 in words is "sixty-one trillion, eight hundred twenty-six billion, three hundred ninety-six million, three hundred ninety thousand, five hundred fifty-two".