39457583421 has 8 divisors (see below), whose sum is σ = 52814820864. Its totient is φ = 26202700800.

The previous prime is 39457583419. The next prime is 39457583449. The reversal of 39457583421 is 12438575493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39457583421 - 2¹ = 39457583419 is a prime.

It is a super-3 number, since 3×39457583421³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39457583621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25587805 + ... + 25589346.

It is an arithmetic number, because the mean of its divisors is an integer number (6601852608).

Almost surely, 2^39457583421 is an apocalyptic number.

It is an amenable number.

39457583421 is a deficient number, since it is larger than the sum of its proper divisors (13357237443).

39457583421 is a wasteful number, since it uses less digits than its factorization.

39457583421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51177411.

The product of its digits is 3628800, while the sum is 51.

The spelling of 39457583421 in words is "thirty-nine billion, four hundred fifty-seven million, five hundred eighty-three thousand, four hundred twenty-one".