2151437701284 has 27 divisors (see below), whose sum is σ = 5438378657803. Its totient is φ = 717142966872.

The previous prime is 2151437701277. The next prime is 2151437701291. The reversal of 2151437701284 is 4821077341512.

It is a happy number.

The square root of 2151437701284 is 1466778.

It is a perfect power (a square), and thus also a powerful number.

2151437701284 is a `hidden beast` number, since 2 + 1 + 514 + 3 + 7 + 7 + 0 + 128 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (2151437701277) and next prime (2151437701291).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8678437 + ... + 8922899.

Almost surely, 2^{2151437701284} is an apocalyptic number.

2151437701284 is the 1466778-th square number.

It is an amenable number.

2151437701284 is an abundant number, since it is smaller than the sum of its proper divisors (3286940956519).

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

2151437701284 is an frugal number, since it uses more digits than its factorization.

2151437701284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488936 (or 244468 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

It can be divided in two parts, 2151437 and 701284, that added together give a square (2852721 = 1689²).

The spelling of 2151437701284 in words is "two trillion, one hundred fifty-one billion, four hundred thirty-seven million, seven hundred one thousand, two hundred eighty-four".