87203035725005 has 24 divisors (see below), whose sum is σ = 112983555527880. Its totient is φ = 64582383191040.

The previous prime is 87203035724983. The next prime is 87203035725059. The reversal of 87203035725005 is 50052753030278.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 18608646123076 + 68594389601929 = 4313774^2 + 8282173^2 .

It is not a de Polignac number, because 87203035725005 - 2¹⁶ = 87203035659469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 494568590 + ... + 494744879.

It is an arithmetic number, because the mean of its divisors is an integer number (4707648146995).

Almost surely, 2^{87203035725005} is an apocalyptic number.

87203035725005 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

87203035725005 is a deficient number, since it is larger than the sum of its proper divisors (25780519802875).

87203035725005 is a wasteful number, since it uses less digits than its factorization.

87203035725005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989313569 (or 989313552 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 47.

The spelling of 87203035725005 in words is "eighty-seven trillion, two hundred three billion, thirty-five million, seven hundred twenty-five thousand, five".