1202000278547 has 2 divisors, whose sum is σ = 1202000278548. Its totient is φ = 1202000278546.

The previous prime is 1202000278513. The next prime is 1202000278559. The reversal of 1202000278547 is 7458720002021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1202000278547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1202000278547.

It is not a weakly prime, because it can be changed into another prime (1202000278247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601000139273 + 601000139274.

It is an arithmetic number, because the mean of its divisors is an integer number (601000139274).

Almost surely, 2^{1202000278547} is an apocalyptic number.

1202000278547 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202000278547 is an equidigital number, since it uses as much as digits as its factorization.

1202000278547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62720, while the sum is 38.

The spelling of 1202000278547 in words is "one trillion, two hundred two billion, two hundred seventy-eight thousand, five hundred forty-seven".