61036825440 has 48 divisors (see below), whose sum is σ = 192266001648. Its totient is φ = 16276486656.

The previous prime is 61036825429. The next prime is 61036825441. The reversal of 61036825440 is 4452863016.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61036825441) 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, 63579547 + ... + 63580506.

It is an arithmetic number, because the mean of its divisors is an integer number (4005541701).

Almost surely, 2^61036825440 is an apocalyptic number.

61036825440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61036825440 is an abundant number, since it is smaller than the sum of its proper divisors (131229176208).

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

61036825440 is a wasteful number, since it uses less digits than its factorization.

61036825440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127160071 (or 127160063 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 61036825440 in words is "sixty-one billion, thirty-six million, eight hundred twenty-five thousand, four hundred forty".