61092640521792 has 672 divisors, whose sum is σ = 210018456385920. Its totient is φ = 17341135257600.

The previous prime is 61092640521769. The next prime is 61092640521799. The reversal of 61092640521792 is 29712504629016.

It is a happy number.

61092640521792 is a `hidden beast` number, since 6 + 1 + 0 + 9 + 2 + 6 + 40 + 521 + 79 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (61092640521799) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 749957928 + ... + 750039384.

It is an arithmetic number, because the mean of its divisors is an integer number (312527464860).

Almost surely, 2^{61092640521792} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61092640521792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105009228192960).

61092640521792 is an abundant number, since it is smaller than the sum of its proper divisors (148925815864128).

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

61092640521792 is a wasteful number, since it uses less digits than its factorization.

61092640521792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81728 (or 81701 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 61092640521792 in words is "sixty-one trillion, ninety-two billion, six hundred forty million, five hundred twenty-one thousand, seven hundred ninety-two".