557072371890 has 80 divisors (see below), whose sum is σ = 1512448711488. Its totient is φ = 147110351904.

The previous prime is 557072371853. The next prime is 557072371909. The reversal of 557072371890 is 98173270755.

It is a happy number.

557072371890 is a `hidden beast` number, since 55 + 70 + 72 + 371 + 8 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3255132 + ... + 3421991.

Almost surely, 2^557072371890 is an apocalyptic number.

557072371890 is an abundant number, since it is smaller than the sum of its proper divisors (955376339598).

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

557072371890 is a wasteful number, since it uses less digits than its factorization.

557072371890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6677245 (or 6677236 counting only the distinct ones).

The product of its (nonzero) digits is 3704400, while the sum is 54.

The spelling of 557072371890 in words is "five hundred fifty-seven billion, seventy-two million, three hundred seventy-one thousand, eight hundred ninety".