1540480627951 has 2 divisors, whose sum is σ = 1540480627952. Its totient is φ = 1540480627950.

The previous prime is 1540480627949. The next prime is 1540480627967. The reversal of 1540480627951 is 1597260840451.

It is a weak prime.

It is an emirp because it is prime and its reverse (1597260840451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1540480627951 - 2¹ = 1540480627949 is a prime.

Together with 1540480627949, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1540480627151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 770240313975 + 770240313976.

It is an arithmetic number, because the mean of its divisors is an integer number (770240313976).

Almost surely, 2^{1540480627951} is an apocalyptic number.

1540480627951 is a deficient number, since it is larger than the sum of its proper divisors (1).

1540480627951 is an equidigital number, since it uses as much as digits as its factorization.

1540480627951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2419200, while the sum is 52.

The spelling of 1540480627951 in words is "one trillion, five hundred forty billion, four hundred eighty million, six hundred twenty-seven thousand, nine hundred fifty-one".