1268325537 has 32 divisors (see below), whose sum is σ = 1794293760. Its totient is φ = 795778560.

The previous prime is 1268325533. The next prime is 1268325551. The reversal of 1268325537 is 7355238621.

It is a happy number.

It is not a de Polignac number, because 1268325537 - 2² = 1268325533 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1268325533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 531048 + ... + 533430.

It is an arithmetic number, because the mean of its divisors is an integer number (56071680).

Almost surely, 2^1268325537 is an apocalyptic number.

It is an amenable number.

1268325537 is a deficient number, since it is larger than the sum of its proper divisors (525968223).

1268325537 is a wasteful number, since it uses less digits than its factorization.

1268325537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573.

The product of its digits is 302400, while the sum is 42.

The square root of 1268325537 is about 35613.5583310626. The cubic root of 1268325537 is about 1082.4559839303.

The spelling of 1268325537 in words is "one billion, two hundred sixty-eight million, three hundred twenty-five thousand, five hundred thirty-seven".