1257022798040 has 32 divisors (see below), whose sum is σ = 2828369826000. Its totient is φ = 502796936064.

The previous prime is 1257022798037. The next prime is 1257022798043. The reversal of 1257022798040 is 408972207521.

It is an interprime number because it is at equal distance from previous prime (1257022798037) and next prime (1257022798043).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1257022798043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1392731 + ... + 2110389.

Almost surely, 2^{1257022798040} is an apocalyptic number.

1257022798040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1257022798040 is an abundant number, since it is smaller than the sum of its proper divisors (1571347027960).

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

1257022798040 is a wasteful number, since it uses less digits than its factorization.

1257022798040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761459 (or 761455 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 47.

The spelling of 1257022798040 in words is "one trillion, two hundred fifty-seven billion, twenty-two million, seven hundred ninety-eight thousand, forty".