381298496531 has 8 divisors (see below), whose sum is σ = 394210596864. Its totient is φ = 368424655560.

The previous prime is 381298496507. The next prime is 381298496533. The reversal of 381298496531 is 135694892183.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381298496531 is a prime.

It is a super-2 number, since 2×381298496531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381298496533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9544571 + ... + 9584436.

It is an arithmetic number, because the mean of its divisors is an integer number (49276324608).

Almost surely, 2^381298496531 is an apocalyptic number.

381298496531 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

381298496531 is a deficient number, since it is larger than the sum of its proper divisors (12912100333).

381298496531 is a wasteful number, since it uses less digits than its factorization.

381298496531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19129681.

The product of its digits is 11197440, while the sum is 59.

The spelling of 381298496531 in words is "three hundred eighty-one billion, two hundred ninety-eight million, four hundred ninety-six thousand, five hundred thirty-one".