125802801602 has 4 divisors (see below), whose sum is σ = 188704202406. Its totient is φ = 62901400800.

The previous prime is 125802801581. The next prime is 125802801611. The reversal of 125802801602 is 206108208521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 125621333761 + 181467841 = 354431^2 + 13471^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31450700399 + ... + 31450700402.

Almost surely, 2^125802801602 is an apocalyptic number.

125802801602 is a deficient number, since it is larger than the sum of its proper divisors (62901400804).

125802801602 is an equidigital number, since it uses as much as digits as its factorization.

125802801602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62901400803.

The product of its (nonzero) digits is 15360, while the sum is 35.

It can be divided in two parts, 12580 and 2801602, that added together give a palindrome (2814182).

The spelling of 125802801602 in words is "one hundred twenty-five billion, eight hundred two million, eight hundred one thousand, six hundred two".