61129062192 has 160 divisors (see below), whose sum is σ = 182638024704. Its totient is φ = 17441740800.

The previous prime is 61129062191. The next prime is 61129062227. The reversal of 61129062192 is 29126092116.

It is a self number, because there is not a number n which added to its sum of digits gives 61129062192.

It is not an unprimeable number, because it can be changed into a prime (61129062191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 555148 + ... + 656084.

Almost surely, 2^61129062192 is an apocalyptic number.

61129062192 is a gapful number since it is divisible by the number (62) 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 61129062192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91319012352).

61129062192 is an abundant number, since it is smaller than the sum of its proper divisors (121508962512).

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

61129062192 is a wasteful number, since it uses less digits than its factorization.

61129062192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101027 (or 101021 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The spelling of 61129062192 in words is "sixty-one billion, one hundred twenty-nine million, sixty-two thousand, one hundred ninety-two".