1571257906411 has 16 divisors (see below), whose sum is σ = 1654107104160. Its totient is φ = 1490580299520.

The previous prime is 1571257906333. The next prime is 1571257906483. The reversal of 1571257906411 is 1146097521751.

It is a cyclic number.

It is not a de Polignac number, because 1571257906411 - 2¹³ = 1571257898219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1571257936411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2136145 + ... + 2775901.

It is an arithmetic number, because the mean of its divisors is an integer number (103381694010).

Almost surely, 2^{1571257906411} is an apocalyptic number.

1571257906411 is a deficient number, since it is larger than the sum of its proper divisors (82849197749).

1571257906411 is a wasteful number, since it uses less digits than its factorization.

1571257906411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641454.

The product of its (nonzero) digits is 529200, while the sum is 49.

The spelling of 1571257906411 in words is "one trillion, five hundred seventy-one billion, two hundred fifty-seven million, nine hundred six thousand, four hundred eleven".