47460428640 has 144 divisors (see below), whose sum is σ = 171485784288. Its totient is φ = 11911630848.

The previous prime is 47460428621. The next prime is 47460428641. The reversal of 47460428640 is 4682406474.

47460428640 is a `hidden beast` number, since 474 + 60 + 4 + 2 + 86 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47460428641) 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 23 ways as a sum of consecutive naturals, for example, 944892 + ... + 993851.

It is an arithmetic number, because the mean of its divisors is an integer number (1190873502).

Almost surely, 2^47460428640 is an apocalyptic number.

47460428640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47460428640 is an abundant number, since it is smaller than the sum of its proper divisors (124025355648).

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

47460428640 is a wasteful number, since it uses less digits than its factorization.

47460428640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1938781 (or 1938770 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 45.

It can be divided in two parts, 47460 and 428640, that added together give a square (476100 = 690²).

The spelling of 47460428640 in words is "forty-seven billion, four hundred sixty million, four hundred twenty-eight thousand, six hundred forty".