1351747723654 has 4 divisors (see below), whose sum is σ = 2027621585484. Its totient is φ = 675873861826.

The previous prime is 1351747723631. The next prime is 1351747723681. The reversal of 1351747723654 is 4563277471531.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1351747723654² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1351747723595 and 1351747723604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337936930912 + ... + 337936930915.

It is an arithmetic number, because the mean of its divisors is an integer number (506905396371).

Almost surely, 2^{1351747723654} is an apocalyptic number.

1351747723654 is a deficient number, since it is larger than the sum of its proper divisors (675873861830).

1351747723654 is an equidigital number, since it uses as much as digits as its factorization.

1351747723654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675873861829.

The product of its digits is 14817600, while the sum is 55.

The spelling of 1351747723654 in words is "one trillion, three hundred fifty-one billion, seven hundred forty-seven million, seven hundred twenty-three thousand, six hundred fifty-four".