1047257507402 has 4 divisors (see below), whose sum is σ = 1570886261106. Its totient is φ = 523628753700.

The previous prime is 1047257507357. The next prime is 1047257507411. The reversal of 1047257507402 is 2047057527401.

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

It can be written as a sum of positive squares in only one way, i.e., 1005228817321 + 42028690081 = 1002611^2 + 205009^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261814376849 + ... + 261814376852.

Almost surely, 2^{1047257507402} is an apocalyptic number.

1047257507402 is a deficient number, since it is larger than the sum of its proper divisors (523628753704).

1047257507402 is an equidigital number, since it uses as much as digits as its factorization.

1047257507402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523628753703.

The product of its (nonzero) digits is 548800, while the sum is 44.

The spelling of 1047257507402 in words is "one trillion, forty-seven billion, two hundred fifty-seven million, five hundred seven thousand, four hundred two".