47837501770421 has 6 divisors (see below), whose sum is σ = 52581716822166. Its totient is φ = 43488637973000.

The previous prime is 47837501770403. The next prime is 47837501770489. The reversal of 47837501770421 is 12407710573874.

It can be written as a sum of positive squares in only one way, i.e., 31079621508100 + 16757880262321 = 5574910^2 + 4093639^2 .

It is a de Polignac number, because none of the positive numbers 2^k-47837501770421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47837501770021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 197675627030 + ... + 197675627271.

It is an arithmetic number, because the mean of its divisors is an integer number (8763619470361).

Almost surely, 2^{47837501770421} is an apocalyptic number.

It is an amenable number.

47837501770421 is a deficient number, since it is larger than the sum of its proper divisors (4744215051745).

47837501770421 is a wasteful number, since it uses less digits than its factorization.

47837501770421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395351254323 (or 395351254312 counting only the distinct ones).

The product of its (nonzero) digits is 9219840, while the sum is 56.

The spelling of 47837501770421 in words is "forty-seven trillion, eight hundred thirty-seven billion, five hundred one million, seven hundred seventy thousand, four hundred twenty-one".