1025064204451 has 4 divisors (see below), whose sum is σ = 1171501947952. Its totient is φ = 878626460952.

The previous prime is 1025064204427. The next prime is 1025064204473. The reversal of 1025064204451 is 1544024605201.

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

It is a cyclic number.

It is not a de Polignac number, because 1025064204451 - 2⁹ = 1025064203939 is a prime.

It is a super-2 number, since 2×1025064204451² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1025064207451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73218871740 + ... + 73218871753.

It is an arithmetic number, because the mean of its divisors is an integer number (292875486988).

Almost surely, 2^{1025064204451} is an apocalyptic number.

1025064204451 is a deficient number, since it is larger than the sum of its proper divisors (146437743501).

1025064204451 is an equidigital number, since it uses as much as digits as its factorization.

1025064204451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146437743500.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 1025064204451 its reverse (1544024605201), we get a palindrome (2569088809652).

The spelling of 1025064204451 in words is "one trillion, twenty-five billion, sixty-four million, two hundred four thousand, four hundred fifty-one".