481269739491 has 24 divisors (see below), whose sum is σ = 731853159440. Its totient is φ = 303919128000.

The previous prime is 481269739451. The next prime is 481269739537. The reversal of 481269739491 is 194937962184.

481269739491 is a `hidden beast` number, since 4 + 8 + 1 + 26 + 97 + 39 + 491 = 666.

It is not a de Polignac number, because 481269739491 - 2²³ = 481261350883 is a prime.

It is a super-3 number, since 3×481269739491³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (481269739411) 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, 1118541 + ... + 1487841.

Almost surely, 2^481269739491 is an apocalyptic number.

481269739491 is a deficient number, since it is larger than the sum of its proper divisors (250583419949).

481269739491 is a wasteful number, since it uses less digits than its factorization.

481269739491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376947 (or 376944 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 63.

The spelling of 481269739491 in words is "four hundred eighty-one billion, two hundred sixty-nine million, seven hundred thirty-nine thousand, four hundred ninety-one".