157028051705 has 8 divisors (see below), whose sum is σ = 215352756672. Its totient is φ = 107676378288.

The previous prime is 157028051683. The next prime is 157028051707. The reversal of 157028051705 is 507150820751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157028051705 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157028051707) 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, 2243257847 + ... + 2243257916.

It is an arithmetic number, because the mean of its divisors is an integer number (26919094584).

Almost surely, 2^157028051705 is an apocalyptic number.

It is an amenable number.

157028051705 is a deficient number, since it is larger than the sum of its proper divisors (58324704967).

157028051705 is an equidigital number, since it uses as much as digits as its factorization.

157028051705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4486515775.

The product of its (nonzero) digits is 98000, while the sum is 41.

The spelling of 157028051705 in words is "one hundred fifty-seven billion, twenty-eight million, fifty-one thousand, seven hundred five".