1493079678431 has 16 divisors (see below), whose sum is σ = 1633253360640. Its totient is φ = 1353650706720.

The previous prime is 1493079678421. The next prime is 1493079678463. The reversal of 1493079678431 is 1348769703941.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1493079678431 is a prime.

It is a super-2 number, since 2×1493079678431² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1493079678421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6076346 + ... + 6317288.

It is an arithmetic number, because the mean of its divisors is an integer number (102078335040).

Almost surely, 2^{1493079678431} is an apocalyptic number.

1493079678431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1493079678431 is a deficient number, since it is larger than the sum of its proper divisors (140173682209).

1493079678431 is a wasteful number, since it uses less digits than its factorization.

1493079678431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242486.

The product of its (nonzero) digits is 27433728, while the sum is 62.

The spelling of 1493079678431 in words is "one trillion, four hundred ninety-three billion, seventy-nine million, six hundred seventy-eight thousand, four hundred thirty-one".