671424531442 has 48 divisors (see below), whose sum is σ = 1184406171480. Its totient is φ = 284603784192.

The previous prime is 671424531431. The next prime is 671424531461. The reversal of 671424531442 is 244135424176.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 653411938921 + 18012592521 = 808339^2 + 134211^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15311284 + ... + 15355072.

Almost surely, 2^671424531442 is an apocalyptic number.

671424531442 is a deficient number, since it is larger than the sum of its proper divisors (512981640038).

671424531442 is a wasteful number, since it uses less digits than its factorization.

671424531442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45515 (or 45508 counting only the distinct ones).

The product of its digits is 645120, while the sum is 43.

The spelling of 671424531442 in words is "six hundred seventy-one billion, four hundred twenty-four million, five hundred thirty-one thousand, four hundred forty-two".