61897067326 has 16 divisors (see below), whose sum is σ = 95029743600. Its totient is φ = 30220864128.

The previous prime is 61897067257. The next prime is 61897067333. The reversal of 61897067326 is 62376079816.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241920 + ... + 426988.

It is an arithmetic number, because the mean of its divisors is an integer number (5939358975).

Almost surely, 2^61897067326 is an apocalyptic number.

61897067326 is a deficient number, since it is larger than the sum of its proper divisors (33132676274).

61897067326 is a wasteful number, since it uses less digits than its factorization.

61897067326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189003.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 61897067326 in words is "sixty-one billion, eight hundred ninety-seven million, sixty-seven thousand, three hundred twenty-six".