1902151481287 has 2 divisors, whose sum is σ = 1902151481288. Its totient is φ = 1902151481286.

The previous prime is 1902151481267. The next prime is 1902151481317. The reversal of 1902151481287 is 7821841512091.

It is a weak prime.

It is an emirp because it is prime and its reverse (7821841512091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1902151481287 - 2⁷ = 1902151481159 is a prime.

It is a super-2 number, since 2×1902151481287² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1902151481287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1902151481257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 951075740643 + 951075740644.

It is an arithmetic number, because the mean of its divisors is an integer number (951075740644).

Almost surely, 2^{1902151481287} is an apocalyptic number.

1902151481287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1902151481287 is an equidigital number, since it uses as much as digits as its factorization.

1902151481287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 49.

The spelling of 1902151481287 in words is "one trillion, nine hundred two billion, one hundred fifty-one million, four hundred eighty-one thousand, two hundred eighty-seven".