47354381878440 has 128 divisors (see below), whose sum is σ = 174846948514560. Its totient is φ = 9991254196224.

The previous prime is 47354381878369. The next prime is 47354381878469. The reversal of 47354381878440 is 4487818345374.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2168230009 + ... + 2168251848.

It is an arithmetic number, because the mean of its divisors is an integer number (1365991785270).

Almost surely, 2^{47354381878440} is an apocalyptic number.

47354381878440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47354381878440 is an abundant number, since it is smaller than the sum of its proper divisors (127492566636120).

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

47354381878440 is a wasteful number, since it uses less digits than its factorization.

47354381878440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4336481891 (or 4336481887 counting only the distinct ones).

The product of its (nonzero) digits is 289013760, while the sum is 66.

The spelling of 47354381878440 in words is "forty-seven trillion, three hundred fifty-four billion, three hundred eighty-one million, eight hundred seventy-eight thousand, four hundred forty".