1451708157957 has 4 divisors (see below), whose sum is σ = 1935610877280. Its totient is φ = 967805438636.

The previous prime is 1451708157947. The next prime is 1451708157967. The reversal of 1451708157957 is 7597518071541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1451708157947) and next prime (1451708157967).

It is a cyclic number.

It is not a de Polignac number, because 1451708157957 - 2¹⁰ = 1451708156933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1451708157957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451708157947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241951359657 + ... + 241951359662.

It is an arithmetic number, because the mean of its divisors is an integer number (483902719320).

Almost surely, 2^{1451708157957} is an apocalyptic number.

It is an amenable number.

1451708157957 is a deficient number, since it is larger than the sum of its proper divisors (483902719323).

1451708157957 is an equidigital number, since it uses as much as digits as its factorization.

1451708157957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483902719322.

The product of its (nonzero) digits is 12348000, while the sum is 60.

The spelling of 1451708157957 in words is "one trillion, four hundred fifty-one billion, seven hundred eight million, one hundred fifty-seven thousand, nine hundred fifty-seven".