83276471421 has 36 divisors (see below), whose sum is σ = 142388260924. Its totient is φ = 46588227840.

The previous prime is 83276471387. The next prime is 83276471449. The reversal of 83276471421 is 12417467238.

83276471421 is a `hidden beast` number, since 83 + 27 + 64 + 71 + 421 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 37689951321 + 45586520100 = 194139^2 + 213510^2 .

It is not a de Polignac number, because 83276471421 - 2¹⁰ = 83276470397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83276471221) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2927020 + ... + 2955333.

Almost surely, 2^83276471421 is an apocalyptic number.

It is an amenable number.

83276471421 is a deficient number, since it is larger than the sum of its proper divisors (59111789503).

83276471421 is a wasteful number, since it uses less digits than its factorization.

83276471421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882394 (or 5882380 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The spelling of 83276471421 in words is "eighty-three billion, two hundred seventy-six million, four hundred seventy-one thousand, four hundred twenty-one".