245536984751851 has 96 divisors (see below), whose sum is σ = 289777001250816. Its totient is φ = 207485141760000.

The previous prime is 245536984751819. The next prime is 245536984751953. The reversal of 245536984751851 is 158157489635542.

It is not a de Polignac number, because 245536984751851 - 2⁵ = 245536984751819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245536984751251) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1375614531 + ... + 1375793011.

It is an arithmetic number, because the mean of its divisors is an integer number (3018510429696).

Almost surely, 2^{245536984751851} is an apocalyptic number.

245536984751851 is a deficient number, since it is larger than the sum of its proper divisors (44240016498965).

245536984751851 is a wasteful number, since it uses less digits than its factorization.

245536984751851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178773 (or 178760 counting only the distinct ones).

The product of its digits is 1451520000, while the sum is 73.

The spelling of 245536984751851 in words is "two hundred forty-five trillion, five hundred thirty-six billion, nine hundred eighty-four million, seven hundred fifty-one thousand, eight hundred fifty-one".