857035207470 has 128 divisors (see below), whose sum is σ = 2266278819840. Its totient is φ = 206144040960.

The previous prime is 857035207451. The next prime is 857035207507. The reversal of 857035207470 is 74702530758.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2845185 + ... + 3131955.

It is an arithmetic number, because the mean of its divisors is an integer number (17705303280).

Almost surely, 2^857035207470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 857035207470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1133139409920).

857035207470 is an abundant number, since it is smaller than the sum of its proper divisors (1409243612370).

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

857035207470 is a wasteful number, since it uses less digits than its factorization.

857035207470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286970.

The product of its (nonzero) digits is 1646400, while the sum is 48.

The spelling of 857035207470 in words is "eight hundred fifty-seven billion, thirty-five million, two hundred seven thousand, four hundred seventy".