420412154131025 has 36 divisors (see below), whose sum is σ = 617865027786972. Its totient is φ = 282843325215360.

The previous prime is 420412154131003. The next prime is 420412154131033. The reversal of 420412154131025 is 520131451214024.

It can be written as a sum of positive squares in 6 ways, for example, as 42362967411856 + 378049186719169 = 6508684^2 + 19443487^2 .

It is not a de Polignac number, because 420412154131025 - 2⁸ = 420412154130769 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3237610502 + ... + 3237740351.

It is an arithmetic number, because the mean of its divisors is an integer number (17162917438527).

Almost surely, 2^{420412154131025} is an apocalyptic number.

It is an amenable number.

420412154131025 is a deficient number, since it is larger than the sum of its proper divisors (197452873655947).

420412154131025 is a wasteful number, since it uses less digits than its factorization.

420412154131025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6475350930 (or 6475350918 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The spelling of 420412154131025 in words is "four hundred twenty trillion, four hundred twelve billion, one hundred fifty-four million, one hundred thirty-one thousand, twenty-five".