1477423550421 has 72 divisors (see below), whose sum is σ = 2673843932760. Its totient is φ = 779180580864.

The previous prime is 1477423550419. The next prime is 1477423550423. The reversal of 1477423550421 is 1240553247741.

1477423550421 is a `hidden beast` number, since 1 + 4 + 7 + 74 + 2 + 3 + 550 + 4 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (1477423550419) and next prime (1477423550423).

It can be written as a sum of positive squares in 4 ways, for example, as 117025568100 + 1360397982321 = 342090^2 + 1166361^2 .

It is not a de Polignac number, because 1477423550421 - 2¹ = 1477423550419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1477423550423) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 47046501 + ... + 47077893.

Almost surely, 2^{1477423550421} is an apocalyptic number.

It is an amenable number.

1477423550421 is a deficient number, since it is larger than the sum of its proper divisors (1196420382339).

1477423550421 is a wasteful number, since it uses less digits than its factorization.

1477423550421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39635 (or 39625 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 45.

The spelling of 1477423550421 in words is "one trillion, four hundred seventy-seven billion, four hundred twenty-three million, five hundred fifty thousand, four hundred twenty-one".