57291429690 has 144 divisors (see below), whose sum is σ = 167539436064. Its totient is φ = 13565724480.

The previous prime is 57291429677. The next prime is 57291429691. The reversal of 57291429690 is 9692419275.

57291429690 is a `hidden beast` number, since 5 + 72 + 91 + 429 + 69 + 0 = 666.

It is a super-2 number, since 2×57291429690² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57291429691) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 407097 + ... + 529443.

It is an arithmetic number, because the mean of its divisors is an integer number (1163468306).

Almost surely, 2^57291429690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57291429690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83769718032).

57291429690 is an abundant number, since it is smaller than the sum of its proper divisors (110248006374).

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

57291429690 is a wasteful number, since it uses less digits than its factorization.

57291429690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122425 (or 122411 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 54.

The spelling of 57291429690 in words is "fifty-seven billion, two hundred ninety-one million, four hundred twenty-nine thousand, six hundred ninety".