1455428245477 has 2 divisors, whose sum is σ = 1455428245478. Its totient is φ = 1455428245476.

The previous prime is 1455428245463. The next prime is 1455428245547. The reversal of 1455428245477 is 7745428245541.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1400071096516 + 55357148961 = 1183246^2 + 235281^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1455428245477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1455428645477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 727714122738 + 727714122739.

It is an arithmetic number, because the mean of its divisors is an integer number (727714122739).

Almost surely, 2^{1455428245477} is an apocalyptic number.

It is an amenable number.

1455428245477 is a deficient number, since it is larger than the sum of its proper divisors (1).

1455428245477 is an equidigital number, since it uses as much as digits as its factorization.

1455428245477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50176000, while the sum is 58.

The spelling of 1455428245477 in words is "one trillion, four hundred fifty-five billion, four hundred twenty-eight million, two hundred forty-five thousand, four hundred seventy-seven".