47770021605 has 32 divisors (see below), whose sum is σ = 80323334784. Its totient is φ = 24212272896.

The previous prime is 47770021589. The next prime is 47770021657. The reversal of 47770021605 is 50612007774.

It is not a de Polignac number, because 47770021605 - 2⁴ = 47770021589 is a prime.

It is a congruent number.

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, 976974 + ... + 1024703.

It is an arithmetic number, because the mean of its divisors is an integer number (2510104212).

Almost surely, 2^47770021605 is an apocalyptic number.

It is an amenable number.

47770021605 is a deficient number, since it is larger than the sum of its proper divisors (32553313179).

47770021605 is a wasteful number, since it uses less digits than its factorization.

47770021605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001765.

The product of its (nonzero) digits is 82320, while the sum is 39.

The spelling of 47770021605 in words is "forty-seven billion, seven hundred seventy million, twenty-one thousand, six hundred five".