61897054248 has 48 divisors (see below), whose sum is σ = 168432388800. Its totient is φ = 20534562720.

The previous prime is 61897054237. The next prime is 61897054267. The reversal of 61897054248 is 84245079816.

It is a happy number.

61897054248 is a `hidden beast` number, since 6 + 1 + 8 + 97 + 0 + 542 + 4 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 61897054194 and 61897054203.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2021968 + ... + 2052351.

It is an arithmetic number, because the mean of its divisors is an integer number (3509008100).

Almost surely, 2^61897054248 is an apocalyptic number.

It is an amenable number.

61897054248 is an abundant number, since it is smaller than the sum of its proper divisors (106535334552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61897054248 is a wasteful number, since it uses less digits than its factorization.

61897054248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4074542 (or 4074535 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 61897054248 in words is "sixty-one billion, eight hundred ninety-seven million, fifty-four thousand, two hundred forty-eight".