61192422720 has 672 divisors, whose sum is σ = 255302820864. Its totient is φ = 13248921600.

The previous prime is 61192422703. The next prime is 61192422721. The reversal of 61192422720 is 2722429116.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61192422721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12764644 + ... + 12769436.

It is an arithmetic number, because the mean of its divisors is an integer number (379914912).

Almost surely, 2^61192422720 is an apocalyptic number.

61192422720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61192422720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127651410432).

61192422720 is an abundant number, since it is smaller than the sum of its proper divisors (194110398144).

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

61192422720 is a wasteful number, since it uses less digits than its factorization.

61192422720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4871 (or 4858 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 61192422720 in words is "sixty-one billion, one hundred ninety-two million, four hundred twenty-two thousand, seven hundred twenty".