61047554340 has 96 divisors (see below), whose sum is σ = 175392233856. Its totient is φ = 15855989760.

The previous prime is 61047554329. The next prime is 61047554341. The reversal of 61047554340 is 4345574016.

It is a happy number.

61047554340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61047554341) 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, 1487739 + ... + 1528221.

It is an arithmetic number, because the mean of its divisors is an integer number (1827002436).

Almost surely, 2^61047554340 is an apocalyptic number.

61047554340 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 61047554340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87696116928).

61047554340 is an abundant number, since it is smaller than the sum of its proper divisors (114344679516).

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

61047554340 is a wasteful number, since it uses less digits than its factorization.

61047554340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41149 (or 41147 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 39.

The spelling of 61047554340 in words is "sixty-one billion, forty-seven million, five hundred fifty-four thousand, three hundred forty".