1257129244952 has 32 divisors (see below), whose sum is σ = 2693986360320. Its totient is φ = 538742080800.

The previous prime is 1257129244949. The next prime is 1257129244999. The reversal of 1257129244952 is 2594429217521.

It is a junction number, because it is equal to n+sod(n) for n = 1257129244894 and 1257129244903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547577 + ... + 1677527.

It is an arithmetic number, because the mean of its divisors is an integer number (84187073760).

Almost surely, 2^{1257129244952} is an apocalyptic number.

It is an amenable number.

1257129244952 is an abundant number, since it is smaller than the sum of its proper divisors (1436857115368).

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

1257129244952 is a wasteful number, since it uses less digits than its factorization.

1257129244952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149831 (or 1149827 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 53.

The spelling of 1257129244952 in words is "one trillion, two hundred fifty-seven billion, one hundred twenty-nine million, two hundred forty-four thousand, nine hundred fifty-two".