61452819888 has 40 divisors (see below), whose sum is σ = 163043747568. Its totient is φ = 19930643712.

The previous prime is 61452819887. The next prime is 61452819907. The reversal of 61452819888 is 88891825416.

It is a super-3 number, since 3×61452819888³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (61452819881) 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, 17299131 + ... + 17302682.

Almost surely, 2^61452819888 is an apocalyptic number.

It is an amenable number.

61452819888 is an abundant number, since it is smaller than the sum of its proper divisors (101590927680).

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

61452819888 is a wasteful number, since it uses less digits than its factorization.

61452819888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34601861 (or 34601855 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 60.

The spelling of 61452819888 in words is "sixty-one billion, four hundred fifty-two million, eight hundred nineteen thousand, eight hundred eighty-eight".