37853520452 has 18 divisors (see below), whose sum is σ = 72813280974. Its totient is φ = 17206145440.

The previous prime is 37853520449. The next prime is 37853520499. The reversal of 37853520452 is 25402535873.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 21616644676 + 16236875776 = 147026^2 + 127424^2 .

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39104393 + ... + 39105360.

Almost surely, 2^37853520452 is an apocalyptic number.

It is an amenable number.

37853520452 is a deficient number, since it is larger than the sum of its proper divisors (34959760522).

37853520452 is a wasteful number, since it uses less digits than its factorization.

37853520452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78209779 (or 78209766 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 44.

The spelling of 37853520452 in words is "thirty-seven billion, eight hundred fifty-three million, five hundred twenty thousand, four hundred fifty-two".