61140347400 has 96 divisors (see below), whose sum is σ = 206765560800. Its totient is φ = 14821900800.

The previous prime is 61140347383. The next prime is 61140347419. The reversal of 61140347400 is 474304116.

61140347400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4625245 + ... + 4638444.

It is an arithmetic number, because the mean of its divisors is an integer number (2153807925).

Almost surely, 2^61140347400 is an apocalyptic number.

61140347400 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61140347400 is an abundant number, since it is smaller than the sum of its proper divisors (145625213400).

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

61140347400 is a wasteful number, since it uses less digits than its factorization.

61140347400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9263719 (or 9263710 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The spelling of 61140347400 in words is "sixty-one billion, one hundred forty million, three hundred forty-seven thousand, four hundred".