2720437671 has 16 divisors (see below), whose sum is σ = 4146200064. Its totient is φ = 1554246624.

The previous prime is 2720437669. The next prime is 2720437673. The reversal of 2720437671 is 1767340272.

It is an interprime number because it is at equal distance from previous prime (2720437669) and next prime (2720437673).

It is not a de Polignac number, because 2720437671 - 2¹ = 2720437669 is a prime.

It is a super-2 number, since 2×2720437671² = 14801562243591808482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2720437673) 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, 161950 + ... + 177956.

It is an arithmetic number, because the mean of its divisors is an integer number (259137504).

Almost surely, 2^2720437671 is an apocalyptic number.

2720437671 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2720437671 is a deficient number, since it is larger than the sum of its proper divisors (1425762393).

2720437671 is a wasteful number, since it uses less digits than its factorization.

2720437671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24110.

The product of its (nonzero) digits is 98784, while the sum is 39.

The square root of 2720437671 is about 52157.8150520131. The cubic root of 2720437671 is about 1395.9812764146.

It can be divided in two parts, 2720 and 437671, that added together give a triangular number (440391 = T₉₃₈).

The spelling of 2720437671 in words is "two billion, seven hundred twenty million, four hundred thirty-seven thousand, six hundred seventy-one".