1245421551052 has 36 divisors (see below), whose sum is σ = 2536277708664. Its totient is φ = 533550984960.

The previous prime is 1245421550999. The next prime is 1245421551103. The reversal of 1245421551052 is 2501551245421.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 674974 + ... + 1716517.

It is an arithmetic number, because the mean of its divisors is an integer number (70452158574).

Almost surely, 2^{1245421551052} is an apocalyptic number.

It is an amenable number.

1245421551052 is an abundant number, since it is smaller than the sum of its proper divisors (1290856157612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1245421551052 is a wasteful number, since it uses less digits than its factorization.

1245421551052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2394166 (or 2394157 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 37.

Adding to 1245421551052 its reverse (2501551245421), we get a palindrome (3746972796473).

The spelling of 1245421551052 in words is "one trillion, two hundred forty-five billion, four hundred twenty-one million, five hundred fifty-one thousand, fifty-two".