47921387346 has 80 divisors (see below), whose sum is σ = 129938155776. Its totient is φ = 12886418304.

The previous prime is 47921387341. The next prime is 47921387387. The reversal of 47921387346 is 64378312974.

47921387346 is a `hidden beast` number, since 4 + 7 + 9 + 213 + 87 + 346 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 47921387292 and 47921387301.

It is not an unprimeable number, because it can be changed into a prime (47921387341) 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 39 ways as a sum of consecutive naturals, for example, 1223626 + ... + 1262181.

Almost surely, 2^47921387346 is an apocalyptic number.

47921387346 is an abundant number, since it is smaller than the sum of its proper divisors (82016768430).

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

47921387346 is a wasteful number, since it uses less digits than its factorization.

47921387346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485845 (or 2485836 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 54.

The spelling of 47921387346 in words is "forty-seven billion, nine hundred twenty-one million, three hundred eighty-seven thousand, three hundred forty-six".