402601344220135 has 32 divisors (see below), whose sum is σ = 502896955017600. Its totient is φ = 309149274931200.

The previous prime is 402601344220111. The next prime is 402601344220237. The reversal of 402601344220135 is 531022443106204.

It is not a de Polignac number, because 402601344220135 - 2¹³ = 402601344211943 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 402601344220094 and 402601344220103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20621466 + ... + 35077735.

It is an arithmetic number, because the mean of its divisors is an integer number (15715529844300).

Almost surely, 2^{402601344220135} is an apocalyptic number.

402601344220135 is a deficient number, since it is larger than the sum of its proper divisors (100295610797465).

402601344220135 is a wasteful number, since it uses less digits than its factorization.

402601344220135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55699771.

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 402601344220135 its reverse (531022443106204), we get a palindrome (933623787326339).

The spelling of 402601344220135 in words is "four hundred two trillion, six hundred one billion, three hundred forty-four million, two hundred twenty thousand, one hundred thirty-five".