39741590421 has 24 divisors (see below), whose sum is σ = 65456740440. Its totient is φ = 23017752576.

The previous prime is 39741590351. The next prime is 39741590501. The reversal of 39741590421 is 12409514793.

39741590421 is a `hidden beast` number, since 3 + 9 + 74 + 159 + 0 + 421 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2604060900 + 37137529521 = 51030^2 + 192711^2 .

It is not a de Polignac number, because 39741590421 - 2¹⁰ = 39741589397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39741590821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9988356 + ... + 9992333.

It is an arithmetic number, because the mean of its divisors is an integer number (2727364185).

Almost surely, 2^39741590421 is an apocalyptic number.

It is an amenable number.

39741590421 is a deficient number, since it is larger than the sum of its proper divisors (25715150019).

39741590421 is a wasteful number, since it uses less digits than its factorization.

39741590421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19980725 (or 19980722 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 39741590421 in words is "thirty-nine billion, seven hundred forty-one million, five hundred ninety thousand, four hundred twenty-one".