1257630701232 has 40 divisors (see below), whose sum is σ = 3248933704240. Its totient is φ = 419203215360.

The previous prime is 1257630701219. The next prime is 1257630701237. The reversal of 1257630701232 is 2321070367521.

It is not an unprimeable number, because it can be changed into a prime (1257630701237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3240132 + ... + 3607452.

It is an arithmetic number, because the mean of its divisors is an integer number (81223342606).

Almost surely, 2^{1257630701232} is an apocalyptic number.

1257630701232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1257630701232 is an abundant number, since it is smaller than the sum of its proper divisors (1991303003008).

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

1257630701232 is a wasteful number, since it uses less digits than its factorization.

1257630701232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438661 (or 438655 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 39.

The spelling of 1257630701232 in words is "one trillion, two hundred fifty-seven billion, six hundred thirty million, seven hundred one thousand, two hundred thirty-two".