57011299440 has 40 divisors (see below), whose sum is σ = 176735029008. Its totient is φ = 15203013120.

The previous prime is 57011299409. The next prime is 57011299441. The reversal of 57011299440 is 4499211075.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 57011299392 and 57011299401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57011299441) 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, 118773301 + ... + 118773780.

Almost surely, 2^57011299440 is an apocalyptic number.

It is an amenable number.

57011299440 is an abundant number, since it is smaller than the sum of its proper divisors (119723729568).

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

57011299440 is a wasteful number, since it uses less digits than its factorization.

57011299440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237547097 (or 237547091 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The spelling of 57011299440 in words is "fifty-seven billion, eleven million, two hundred ninety-nine thousand, four hundred forty".