61033853387 has 16 divisors (see below), whose sum is σ = 69227477760. Its totient is φ = 53343414432.

The previous prime is 61033853347. The next prime is 61033853393. The reversal of 61033853387 is 78335833016.

It is not a de Polignac number, because 61033853387 - 2¹⁴ = 61033837003 is a prime.

It is a super-2 number, since 2×61033853387² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61033853347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371108 + ... + 509694.

It is an arithmetic number, because the mean of its divisors is an integer number (4326717360).

Almost surely, 2^61033853387 is an apocalyptic number.

61033853387 is a deficient number, since it is larger than the sum of its proper divisors (8193624373).

61033853387 is a wasteful number, since it uses less digits than its factorization.

61033853387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140402.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 61033853387 in words is "sixty-one billion, thirty-three million, eight hundred fifty-three thousand, three hundred eighty-seven".